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Geth-Modification
Commit ca376ead authored by Felföldi Zsolt's avatar Felföldi Zsolt Committed by Felix Lange
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les, light: LES/2 protocol version (#14970) 

This PR implements the new LES protocol version extensions:

* new and more efficient Merkle proofs reply format (when replying to
  a multiple Merkle proofs request, we just send a single set of trie
  nodes containing all necessary nodes)
* BBT (BloomBitsTrie) works similarly to the existing CHT and contains
  the bloombits search data to speed up log searches
* GetTxStatusMsg returns the inclusion position or the
  pending/queued/unknown state of a transaction referenced by hash
* an optional signature of new block data (number/hash/td) can be
  included in AnnounceMsg to provide an option for "very light
  clients" (mobile/embedded devices) to skip expensive Ethash check
  and accept multiple signatures of somewhat trusted servers (still a
  lot better than trusting a single server completely and retrieving
  everything through RPC). The new client mode is not implemented in
  this PR, just the protocol extension.
parent 6d6a5a93
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Showing with 2049 additions and 481 deletions
core/bloombits/matcher.go
View file @ ca376ead
......@@ -18,6 +18,7 @@ package bloombits
import (
"bytes"
"context"
"errors"
"math"
"sort"
......@@ -60,6 +61,8 @@ type Retrieval struct {
Bit uint
Sections []uint64
Bitsets [][]byte
Error error
Context context.Context
}
// Matcher is a pipelined system of schedulers and logic matchers which perform
......@@ -137,7 +140,7 @@ func (m *Matcher) addScheduler(idx uint) {
// Start starts the matching process and returns a stream of bloom matches in
// a given range of blocks. If there are no more matches in the range, the result
// channel is closed.
func (m *Matcher) Start(begin, end uint64, results chan uint64) (*MatcherSession, error) {
func (m *Matcher) Start(ctx context.Context, begin, end uint64, results chan uint64) (*MatcherSession, error) {
// Make sure we're not creating concurrent sessions
if atomic.SwapUint32(&m.running, 1) == 1 {
return nil, errors.New("matcher already running")
......@@ -149,6 +152,7 @@ func (m *Matcher) Start(begin, end uint64, results chan uint64) (*MatcherSession
matcher: m,
quit: make(chan struct{}),
kill: make(chan struct{}),
ctx: ctx,
}
for _, scheduler := range m.schedulers {
scheduler.reset()
......@@ -502,15 +506,28 @@ func (m *Matcher) distributor(dist chan *request, session *MatcherSession) {
type MatcherSession struct {
matcher *Matcher
quit chan struct{} // Quit channel to request pipeline termination
kill chan struct{} // Term channel to signal non-graceful forced shutdown
pend sync.WaitGroup
quit chan struct{} // Quit channel to request pipeline termination
kill chan struct{} // Term channel to signal non-graceful forced shutdown
ctx context.Context
err error
stopping bool
lock sync.Mutex
pend sync.WaitGroup
}
// Close stops the matching process and waits for all subprocesses to terminate
// before returning. The timeout may be used for graceful shutdown, allowing the
// currently running retrievals to complete before this time.
func (s *MatcherSession) Close(timeout time.Duration) {
func (s *MatcherSession) Close() {
s.lock.Lock()
stopping := s.stopping
s.stopping = true
s.lock.Unlock()
// ensure that we only close the session once
if stopping {
return
}
// Bail out if the matcher is not running
select {
case <-s.quit:
......@@ -519,10 +536,26 @@ func (s *MatcherSession) Close(timeout time.Duration) {
}
// Signal termination and wait for all goroutines to tear down
close(s.quit)
time.AfterFunc(timeout, func() { close(s.kill) })
time.AfterFunc(time.Second, func() { close(s.kill) })
s.pend.Wait()
}
// setError sets an error and stops the session
func (s *MatcherSession) setError(err error) {
s.lock.Lock()
s.err = err
s.lock.Unlock()
s.Close()
}
// Error returns an error if one has happened during the session
func (s *MatcherSession) Error() error {
s.lock.Lock()
defer s.lock.Unlock()
return s.err
}
// AllocateRetrieval assigns a bloom bit index to a client process that can either
// immediately reuest and fetch the section contents assigned to this bit or wait
// a little while for more sections to be requested.
......@@ -618,9 +651,13 @@ func (s *MatcherSession) Multiplex(batch int, wait time.Duration, mux chan chan
case mux <- request:
// Retrieval accepted, something must arrive before we're aborting
request <- &Retrieval{Bit: bit, Sections: sections}
request <- &Retrieval{Bit: bit, Sections: sections, Context: s.ctx}
result := <-request
if result.Error != nil {
s.setError(result.Error)
}
s.DeliverSections(result.Bit, result.Sections, result.Bitsets)
}
}
......
core/bloombits/matcher_test.go
View file @ ca376ead
......@@ -17,6 +17,7 @@
package bloombits
import (
"context"
"math/rand"
"sync/atomic"
"testing"
......@@ -144,7 +145,7 @@ func testMatcher(t *testing.T, filter [][]bloomIndexes, blocks uint64, intermitt
quit := make(chan struct{})
matches := make(chan uint64, 16)
session, err := matcher.Start(0, blocks-1, matches)
session, err := matcher.Start(context.Background(), 0, blocks-1, matches)
if err != nil {
t.Fatalf("failed to stat matcher session: %v", err)
}
......@@ -163,13 +164,13 @@ func testMatcher(t *testing.T, filter [][]bloomIndexes, blocks uint64, intermitt
}
// If we're testing intermittent mode, abort and restart the pipeline
if intermittent {
session.Close(time.Second)
session.Close()
close(quit)
quit = make(chan struct{})
matches = make(chan uint64, 16)
session, err = matcher.Start(i+1, blocks-1, matches)
session, err = matcher.Start(context.Background(), i+1, blocks-1, matches)
if err != nil {
t.Fatalf("failed to stat matcher session: %v", err)
}
......@@ -183,7 +184,7 @@ func testMatcher(t *testing.T, filter [][]bloomIndexes, blocks uint64, intermitt
t.Errorf("filter = %v blocks = %v intermittent = %v: expected closed channel, got #%v", filter, blocks, intermittent, match)
}
// Clean up the session and ensure we match the expected retrieval count
session.Close(time.Second)
session.Close()
close(quit)
if retrievals != 0 && requested != retrievals {
......
core/chain_indexer.go
View file @ ca376ead
......@@ -36,13 +36,14 @@ import (
type ChainIndexerBackend interface {
// Reset initiates the processing of a new chain segment, potentially terminating
// any partially completed operations (in case of a reorg).
Reset(section uint64)
Reset(section uint64, lastSectionHead common.Hash) error
// Process crunches through the next header in the chain segment. The caller
// will ensure a sequential order of headers.
Process(header *types.Header)
// Commit finalizes the section metadata and stores it into the database.
// Commit finalizes the section metadata and stores it into the database. This
// interface will usually be a batch writer.
Commit() error
}
......@@ -100,11 +101,34 @@ func NewChainIndexer(chainDb, indexDb ethdb.Database, backend ChainIndexerBacken
return c
}
// AddKnownSectionHead marks a new section head as known/processed if it is newer
// than the already known best section head
func (c *ChainIndexer) AddKnownSectionHead(section uint64, shead common.Hash) {
c.lock.Lock()
defer c.lock.Unlock()
if section < c.storedSections {
return
}
c.setSectionHead(section, shead)
c.setValidSections(section + 1)
}
// IndexerChain interface is used for connecting the indexer to a blockchain
type IndexerChain interface {
CurrentHeader() *types.Header
SubscribeChainEvent(ch chan<- ChainEvent) event.Subscription
}
// Start creates a goroutine to feed chain head events into the indexer for
// cascading background processing. Children do not need to be started, they
// are notified about new events by their parents.
func (c *ChainIndexer) Start(currentHeader *types.Header, chainEventer func(ch chan<- ChainEvent) event.Subscription) {
go c.eventLoop(currentHeader, chainEventer)
func (c *ChainIndexer) Start(chain IndexerChain) {
ch := make(chan ChainEvent, 10)
sub := chain.SubscribeChainEvent(ch)
currentHeader := chain.CurrentHeader()
go c.eventLoop(currentHeader, ch, sub)
}
// Close tears down all goroutines belonging to the indexer and returns any error
......@@ -125,12 +149,14 @@ func (c *ChainIndexer) Close() error {
errs = append(errs, err)
}
}
// Close all children
for _, child := range c.children {
if err := child.Close(); err != nil {
errs = append(errs, err)
}
}
// Return any failures
switch {
case len(errs) == 0:
......@@ -147,12 +173,10 @@ func (c *ChainIndexer) Close() error {
// eventLoop is a secondary - optional - event loop of the indexer which is only
// started for the outermost indexer to push chain head events into a processing
// queue.
func (c *ChainIndexer) eventLoop(currentHeader *types.Header, chainEventer func(ch chan<- ChainEvent) event.Subscription) {
func (c *ChainIndexer) eventLoop(currentHeader *types.Header, ch chan ChainEvent, sub event.Subscription) {
// Mark the chain indexer as active, requiring an additional teardown
atomic.StoreUint32(&c.active, 1)
events := make(chan ChainEvent, 10)
sub := chainEventer(events)
defer sub.Unsubscribe()
// Fire the initial new head event to start any outstanding processing
......@@ -169,7 +193,7 @@ func (c *ChainIndexer) eventLoop(currentHeader *types.Header, chainEventer func(
errc <- nil
return
case ev, ok := <-events:
case ev, ok := <-ch:
// Received a new event, ensure it's not nil (closing) and update
if !ok {
errc := <-c.quit
......@@ -178,7 +202,9 @@ func (c *ChainIndexer) eventLoop(currentHeader *types.Header, chainEventer func(
}
header := ev.Block.Header()
if header.ParentHash != prevHash {
c.newHead(FindCommonAncestor(c.chainDb, prevHeader, header).Number.Uint64(), true)
if h := FindCommonAncestor(c.chainDb, prevHeader, header); h != nil {
c.newHead(h.Number.Uint64(), true)
}
}
c.newHead(header.Number.Uint64(), false)
......@@ -233,9 +259,10 @@ func (c *ChainIndexer) newHead(head uint64, reorg bool) {
// down into the processing backend.
func (c *ChainIndexer) updateLoop() {
var (
updating bool
updated time.Time
updated time.Time
updateMsg bool
)
for {
select {
case errc := <-c.quit:
......@@ -250,7 +277,7 @@ func (c *ChainIndexer) updateLoop() {
// Periodically print an upgrade log message to the user
if time.Since(updated) > 8*time.Second {
if c.knownSections > c.storedSections+1 {
updating = true
updateMsg = true
c.log.Info("Upgrading chain index", "percentage", c.storedSections*100/c.knownSections)
}
updated = time.Now()
......@@ -259,7 +286,7 @@ func (c *ChainIndexer) updateLoop() {
section := c.storedSections
var oldHead common.Hash
if section > 0 {
oldHead = c.sectionHead(section - 1)
oldHead = c.SectionHead(section - 1)
}
// Process the newly defined section in the background
c.lock.Unlock()
......@@ -270,11 +297,11 @@ func (c *ChainIndexer) updateLoop() {
c.lock.Lock()
// If processing succeeded and no reorgs occcurred, mark the section completed
if err == nil && oldHead == c.sectionHead(section-1) {
if err == nil && oldHead == c.SectionHead(section-1) {
c.setSectionHead(section, newHead)
c.setValidSections(section + 1)
if c.storedSections == c.knownSections && updating {
updating = false
if c.storedSections == c.knownSections && updateMsg {
updateMsg = false
c.log.Info("Finished upgrading chain index")
}
......@@ -311,7 +338,11 @@ func (c *ChainIndexer) processSection(section uint64, lastHead common.Hash) (com
c.log.Trace("Processing new chain section", "section", section)
// Reset and partial processing
c.backend.Reset(section)
if err := c.backend.Reset(section, lastHead); err != nil {
c.setValidSections(0)
return common.Hash{}, err
}
for number := section * c.sectionSize; number < (section+1)*c.sectionSize; number++ {
hash := GetCanonicalHash(c.chainDb, number)
......@@ -341,7 +372,7 @@ func (c *ChainIndexer) Sections() (uint64, uint64, common.Hash) {
c.lock.Lock()
defer c.lock.Unlock()
return c.storedSections, c.storedSections*c.sectionSize - 1, c.sectionHead(c.storedSections - 1)
return c.storedSections, c.storedSections*c.sectionSize - 1, c.SectionHead(c.storedSections - 1)
}
// AddChildIndexer adds a child ChainIndexer that can use the output of this one
......@@ -383,7 +414,7 @@ func (c *ChainIndexer) setValidSections(sections uint64) {
// sectionHead retrieves the last block hash of a processed section from the
// index database.
func (c *ChainIndexer) sectionHead(section uint64) common.Hash {
func (c *ChainIndexer) SectionHead(section uint64) common.Hash {
var data [8]byte
binary.BigEndian.PutUint64(data[:], section)
......
core/chain_indexer_test.go
View file @ ca376ead
......@@ -23,6 +23,7 @@ import (
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
)
......@@ -208,9 +209,10 @@ func (b *testChainIndexBackend) reorg(headNum uint64) uint64 {
return b.stored * b.indexer.sectionSize
}
func (b *testChainIndexBackend) Reset(section uint64) {
func (b *testChainIndexBackend) Reset(section uint64, lastSectionHead common.Hash) error {
b.section = section
b.headerCnt = 0
return nil
}
func (b *testChainIndexBackend) Process(header *types.Header) {
......
core/database_util.go
View file @ ca376ead
......@@ -74,9 +74,9 @@ var (
preimageHitCounter = metrics.NewCounter("db/preimage/hits")
)
// txLookupEntry is a positional metadata to help looking up the data content of
// TxLookupEntry is a positional metadata to help looking up the data content of
// a transaction or receipt given only its hash.
type txLookupEntry struct {
type TxLookupEntry struct {
BlockHash common.Hash
BlockIndex uint64
Index uint64
......@@ -260,7 +260,7 @@ func GetTxLookupEntry(db DatabaseReader, hash common.Hash) (common.Hash, uint64,
return common.Hash{}, 0, 0
}
// Parse and return the contents of the lookup entry
var entry txLookupEntry
var entry TxLookupEntry
if err := rlp.DecodeBytes(data, &entry); err != nil {
log.Error("Invalid lookup entry RLP", "hash", hash, "err", err)
return common.Hash{}, 0, 0
......@@ -296,7 +296,7 @@ func GetTransaction(db DatabaseReader, hash common.Hash) (*types.Transaction, co
if len(data) == 0 {
return nil, common.Hash{}, 0, 0
}
var entry txLookupEntry
var entry TxLookupEntry
if err := rlp.DecodeBytes(data, &entry); err != nil {
return nil, common.Hash{}, 0, 0
}
......@@ -332,14 +332,13 @@ func GetReceipt(db DatabaseReader, hash common.Hash) (*types.Receipt, common.Has
// GetBloomBits retrieves the compressed bloom bit vector belonging to the given
// section and bit index from the.
func GetBloomBits(db DatabaseReader, bit uint, section uint64, head common.Hash) []byte {
func GetBloomBits(db DatabaseReader, bit uint, section uint64, head common.Hash) ([]byte, error) {
key := append(append(bloomBitsPrefix, make([]byte, 10)...), head.Bytes()...)
binary.BigEndian.PutUint16(key[1:], uint16(bit))
binary.BigEndian.PutUint64(key[3:], section)
bits, _ := db.Get(key)
return bits
return db.Get(key)
}
// WriteCanonicalHash stores the canonical hash for the given block number.
......@@ -465,7 +464,7 @@ func WriteBlockReceipts(db ethdb.Putter, hash common.Hash, number uint64, receip
func WriteTxLookupEntries(db ethdb.Putter, block *types.Block) error {
// Iterate over each transaction and encode its metadata
for i, tx := range block.Transactions() {
entry := txLookupEntry{
entry := TxLookupEntry{
BlockHash: block.Hash(),
BlockIndex: block.NumberU64(),
Index: uint64(i),
......
core/tx_list.go
View file @ ca376ead
......@@ -384,13 +384,13 @@ func (h *priceHeap) Pop() interface{} {
// txPricedList is a price-sorted heap to allow operating on transactions pool
// contents in a price-incrementing way.
type txPricedList struct {
all *map[common.Hash]*types.Transaction // Pointer to the map of all transactions
items *priceHeap // Heap of prices of all the stored transactions
stales int // Number of stale price points to (re-heap trigger)
all *map[common.Hash]txLookupRec // Pointer to the map of all transactions
items *priceHeap // Heap of prices of all the stored transactions
stales int // Number of stale price points to (re-heap trigger)
}
// newTxPricedList creates a new price-sorted transaction heap.
func newTxPricedList(all *map[common.Hash]*types.Transaction) *txPricedList {
func newTxPricedList(all *map[common.Hash]txLookupRec) *txPricedList {
return &txPricedList{
all: all,
items: new(priceHeap),
......@@ -416,7 +416,7 @@ func (l *txPricedList) Removed() {
l.stales, l.items = 0, &reheap
for _, tx := range *l.all {
*l.items = append(*l.items, tx)
*l.items = append(*l.items, tx.tx)
}
heap.Init(l.items)
}
......
core/tx_pool.go
View file @ ca376ead
......@@ -192,17 +192,22 @@ type TxPool struct {
locals *accountSet // Set of local transaction to exepmt from evicion rules
journal *txJournal // Journal of local transaction to back up to disk
pending map[common.Address]*txList // All currently processable transactions
queue map[common.Address]*txList // Queued but non-processable transactions
beats map[common.Address]time.Time // Last heartbeat from each known account
all map[common.Hash]*types.Transaction // All transactions to allow lookups
priced *txPricedList // All transactions sorted by price
pending map[common.Address]*txList // All currently processable transactions
queue map[common.Address]*txList // Queued but non-processable transactions
beats map[common.Address]time.Time // Last heartbeat from each known account
all map[common.Hash]txLookupRec // All transactions to allow lookups
priced *txPricedList // All transactions sorted by price
wg sync.WaitGroup // for shutdown sync
homestead bool
}
type txLookupRec struct {
tx *types.Transaction
pending bool
}
// NewTxPool creates a new transaction pool to gather, sort and filter inbound
// trnsactions from the network.
func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, chain blockChain) *TxPool {
......@@ -218,7 +223,7 @@ func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, chain block
pending: make(map[common.Address]*txList),
queue: make(map[common.Address]*txList),
beats: make(map[common.Address]time.Time),
all: make(map[common.Hash]*types.Transaction),
all: make(map[common.Hash]txLookupRec),
chainHeadCh: make(chan ChainHeadEvent, chainHeadChanSize),
gasPrice: new(big.Int).SetUint64(config.PriceLimit),
}
......@@ -594,7 +599,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
func (pool *TxPool) add(tx *types.Transaction, local bool) (bool, error) {
// If the transaction is already known, discard it
hash := tx.Hash()
if pool.all[hash] != nil {
if _, ok := pool.all[hash]; ok {
log.Trace("Discarding already known transaction", "hash", hash)
return false, fmt.Errorf("known transaction: %x", hash)
}
......@@ -635,7 +640,7 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (bool, error) {
pool.priced.Removed()
pendingReplaceCounter.Inc(1)
}
pool.all[tx.Hash()] = tx
pool.all[tx.Hash()] = txLookupRec{tx, false}
pool.priced.Put(tx)
pool.journalTx(from, tx)
......@@ -682,7 +687,7 @@ func (pool *TxPool) enqueueTx(hash common.Hash, tx *types.Transaction) (bool, er
pool.priced.Removed()
queuedReplaceCounter.Inc(1)
}
pool.all[hash] = tx
pool.all[hash] = txLookupRec{tx, false}
pool.priced.Put(tx)
return old != nil, nil
}
......@@ -725,10 +730,13 @@ func (pool *TxPool) promoteTx(addr common.Address, hash common.Hash, tx *types.T
pendingReplaceCounter.Inc(1)
}
// Failsafe to work around direct pending inserts (tests)
if pool.all[hash] == nil {
pool.all[hash] = tx
if pool.all[hash].tx == nil {
// Failsafe to work around direct pending inserts (tests)
pool.all[hash] = txLookupRec{tx, true}
pool.priced.Put(tx)
} else {
// set pending flag to true
pool.all[hash] = txLookupRec{tx, true}
}
// Set the potentially new pending nonce and notify any subsystems of the new tx
pool.beats[addr] = time.Now()
......@@ -755,14 +763,16 @@ func (pool *TxPool) AddRemote(tx *types.Transaction) error {
// marking the senders as a local ones in the mean time, ensuring they go around
// the local pricing constraints.
func (pool *TxPool) AddLocals(txs []*types.Transaction) error {
return pool.addTxs(txs, !pool.config.NoLocals)
pool.addTxs(txs, !pool.config.NoLocals)
return nil
}
// AddRemotes enqueues a batch of transactions into the pool if they are valid.
// If the senders are not among the locally tracked ones, full pricing constraints
// will apply.
func (pool *TxPool) AddRemotes(txs []*types.Transaction) error {
return pool.addTxs(txs, false)
pool.addTxs(txs, false)
return nil
}
// addTx enqueues a single transaction into the pool if it is valid.
......@@ -784,7 +794,7 @@ func (pool *TxPool) addTx(tx *types.Transaction, local bool) error {
}
// addTxs attempts to queue a batch of transactions if they are valid.
func (pool *TxPool) addTxs(txs []*types.Transaction, local bool) error {
func (pool *TxPool) addTxs(txs []*types.Transaction, local bool) []error {
pool.mu.Lock()
defer pool.mu.Unlock()
......@@ -793,11 +803,13 @@ func (pool *TxPool) addTxs(txs []*types.Transaction, local bool) error {
// addTxsLocked attempts to queue a batch of transactions if they are valid,
// whilst assuming the transaction pool lock is already held.
func (pool *TxPool) addTxsLocked(txs []*types.Transaction, local bool) error {
func (pool *TxPool) addTxsLocked(txs []*types.Transaction, local bool) []error {
// Add the batch of transaction, tracking the accepted ones
dirty := make(map[common.Address]struct{})
for _, tx := range txs {
if replace, err := pool.add(tx, local); err == nil {
txErr := make([]error, len(txs))
for i, tx := range txs {
var replace bool
if replace, txErr[i] = pool.add(tx, local); txErr[i] == nil {
if !replace {
from, _ := types.Sender(pool.signer, tx) // already validated
dirty[from] = struct{}{}
......@@ -812,7 +824,58 @@ func (pool *TxPool) addTxsLocked(txs []*types.Transaction, local bool) error {
}
pool.promoteExecutables(addrs)
}
return nil
return txErr
}
// TxStatusData is returned by AddOrGetTxStatus for each transaction
type TxStatusData struct {
Status uint
Data []byte
}
const (
TxStatusUnknown = iota
TxStatusQueued
TxStatusPending
TxStatusIncluded // Data contains a TxChainPos struct
TxStatusError // Data contains the error string
)
// AddOrGetTxStatus returns the status (unknown/pending/queued) of a batch of transactions
// identified by their hashes in txHashes. Optionally the transactions themselves can be
// passed too in txs, in which case the function will try adding the previously unknown ones
// to the pool. If a new transaction cannot be added, TxStatusError is returned. Adding already
// known transactions will return their previous status.
// If txs is specified, txHashes is still required and has to match the transactions in txs.
// Note: TxStatusIncluded is never returned by this function since the pool does not track
// mined transactions. Included status can be checked by the caller (as it happens in the
// LES protocol manager)
func (pool *TxPool) AddOrGetTxStatus(txs []*types.Transaction, txHashes []common.Hash) []TxStatusData {
status := make([]TxStatusData, len(txHashes))
if txs != nil {
if len(txs) != len(txHashes) {
panic(nil)
}
txErr := pool.addTxs(txs, false)
for i, err := range txErr {
if err != nil {
status[i] = TxStatusData{TxStatusError, ([]byte)(err.Error())}
}
}
}
for i, hash := range txHashes {
r, ok := pool.all[hash]
if ok {
if r.pending {
status[i] = TxStatusData{TxStatusPending, nil}
} else {
status[i] = TxStatusData{TxStatusQueued, nil}
}
}
}
return status
}
// Get returns a transaction if it is contained in the pool
......@@ -821,17 +884,18 @@ func (pool *TxPool) Get(hash common.Hash) *types.Transaction {
pool.mu.RLock()
defer pool.mu.RUnlock()
return pool.all[hash]
return pool.all[hash].tx
}
// removeTx removes a single transaction from the queue, moving all subsequent
// transactions back to the future queue.
func (pool *TxPool) removeTx(hash common.Hash) {
// Fetch the transaction we wish to delete
tx, ok := pool.all[hash]
txl, ok := pool.all[hash]
if !ok {
return
}
tx := txl.tx
addr, _ := types.Sender(pool.signer, tx) // already validated during insertion
// Remove it from the list of known transactions
......
eth/backend.go
View file @ ca376ead
......@@ -54,6 +54,7 @@ type LesServer interface {
Start(srvr *p2p.Server)
Stop()
Protocols() []p2p.Protocol
SetBloomBitsIndexer(bbIndexer *core.ChainIndexer)
}
// Ethereum implements the Ethereum full node service.
......@@ -95,6 +96,7 @@ type Ethereum struct {
func (s *Ethereum) AddLesServer(ls LesServer) {
s.lesServer = ls
ls.SetBloomBitsIndexer(s.bloomIndexer)
}
// New creates a new Ethereum object (including the
......@@ -154,7 +156,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
eth.blockchain.SetHead(compat.RewindTo)
core.WriteChainConfig(chainDb, genesisHash, chainConfig)
}
eth.bloomIndexer.Start(eth.blockchain.CurrentHeader(), eth.blockchain.SubscribeChainEvent)
eth.bloomIndexer.Start(eth.blockchain)
if config.TxPool.Journal != "" {
config.TxPool.Journal = ctx.ResolvePath(config.TxPool.Journal)
......
eth/bloombits.go
View file @ ca376ead
......@@ -58,15 +58,18 @@ func (eth *Ethereum) startBloomHandlers() {
case request := <-eth.bloomRequests:
task := <-request
task.Bitsets = make([][]byte, len(task.Sections))
for i, section := range task.Sections {
head := core.GetCanonicalHash(eth.chainDb, (section+1)*params.BloomBitsBlocks-1)
blob, err := bitutil.DecompressBytes(core.GetBloomBits(eth.chainDb, task.Bit, section, head), int(params.BloomBitsBlocks)/8)
if err != nil {
panic(err)
if compVector, err := core.GetBloomBits(eth.chainDb, task.Bit, section, head); err == nil {
if blob, err := bitutil.DecompressBytes(compVector, int(params.BloomBitsBlocks)/8); err == nil {
task.Bitsets[i] = blob
} else {
task.Error = err
}
} else {
task.Error = err
}
task.Bitsets[i] = blob
}
request <- task
}
......@@ -111,12 +114,10 @@ func NewBloomIndexer(db ethdb.Database, size uint64) *core.ChainIndexer {
// Reset implements core.ChainIndexerBackend, starting a new bloombits index
// section.
func (b *BloomIndexer) Reset(section uint64) {
func (b *BloomIndexer) Reset(section uint64, lastSectionHead common.Hash) error {
gen, err := bloombits.NewGenerator(uint(b.size))
if err != nil {
panic(err)
}
b.gen, b.section, b.head = gen, section, common.Hash{}
return err
}
// Process implements core.ChainIndexerBackend, adding a new header's bloom into
......
eth/filters/filter.go
View file @ ca376ead
......@@ -19,7 +19,6 @@ package filters
import (
"context"
"math/big"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
......@@ -136,11 +135,11 @@ func (f *Filter) indexedLogs(ctx context.Context, end uint64) ([]*types.Log, err
// Create a matcher session and request servicing from the backend
matches := make(chan uint64, 64)
session, err := f.matcher.Start(uint64(f.begin), end, matches)
session, err := f.matcher.Start(ctx, uint64(f.begin), end, matches)
if err != nil {
return nil, err
}
defer session.Close(time.Second)
defer session.Close()
f.backend.ServiceFilter(ctx, session)
......@@ -152,9 +151,13 @@ func (f *Filter) indexedLogs(ctx context.Context, end uint64) ([]*types.Log, err
case number, ok := <-matches:
// Abort if all matches have been fulfilled
if !ok {
f.begin = int64(end) + 1
return logs, nil
err := session.Error()
if err == nil {
f.begin = int64(end) + 1
}
return logs, err
}
f.begin = int64(number) + 1
// Retrieve the suggested block and pull any truly matching logs
header, err := f.backend.HeaderByNumber(ctx, rpc.BlockNumber(number))
if header == nil || err != nil {
......
eth/filters/filter_system_test.go
View file @ ca376ead
......@@ -109,7 +109,7 @@ func (b *testBackend) ServiceFilter(ctx context.Context, session *bloombits.Matc
for i, section := range task.Sections {
if rand.Int()%4 != 0 { // Handle occasional missing deliveries
head := core.GetCanonicalHash(b.db, (section+1)*params.BloomBitsBlocks-1)
task.Bitsets[i] = core.GetBloomBits(b.db, task.Bit, section, head)
task.Bitsets[i], _ = core.GetBloomBits(b.db, task.Bit, section, head)
}
}
request <- task
......
ethstats/ethstats.go
View file @ ca376ead
......@@ -379,7 +379,7 @@ func (s *Service) login(conn *websocket.Conn) error {
protocol = fmt.Sprintf("eth/%d", eth.ProtocolVersions[0])
} else {
network = fmt.Sprintf("%d", infos.Protocols["les"].(*eth.EthNodeInfo).Network)
protocol = fmt.Sprintf("les/%d", les.ProtocolVersions[0])
protocol = fmt.Sprintf("les/%d", les.ClientProtocolVersions[0])
}
auth := &authMsg{
Id: s.node,
......
les/api_backend.go
View file @ ca376ead
......@@ -174,8 +174,15 @@ func (b *LesApiBackend) AccountManager() *accounts.Manager {
}
func (b *LesApiBackend) BloomStatus() (uint64, uint64) {
return params.BloomBitsBlocks, 0
if b.eth.bloomIndexer == nil {
return 0, 0
}
sections, _, _ := b.eth.bloomIndexer.Sections()
return light.BloomTrieFrequency, sections
}
func (b *LesApiBackend) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {
for i := 0; i < bloomFilterThreads; i++ {
go session.Multiplex(bloomRetrievalBatch, bloomRetrievalWait, b.eth.bloomRequests)
}
}
les/backend.go
View file @ ca376ead
......@@ -27,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/eth/downloader"
......@@ -61,6 +62,9 @@ type LightEthereum struct {
// DB interfaces
chainDb ethdb.Database // Block chain database
bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
bloomIndexer, chtIndexer, bloomTrieIndexer *core.ChainIndexer
ApiBackend *LesApiBackend
eventMux *event.TypeMux
......@@ -87,47 +91,61 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
peers := newPeerSet()
quitSync := make(chan struct{})
eth := &LightEthereum{
chainConfig: chainConfig,
chainDb: chainDb,
eventMux: ctx.EventMux,
peers: peers,
reqDist: newRequestDistributor(peers, quitSync),
accountManager: ctx.AccountManager,
engine: eth.CreateConsensusEngine(ctx, config, chainConfig, chainDb),
shutdownChan: make(chan bool),
networkId: config.NetworkId,
leth := &LightEthereum{
chainConfig: chainConfig,
chainDb: chainDb,
eventMux: ctx.EventMux,
peers: peers,
reqDist: newRequestDistributor(peers, quitSync),
accountManager: ctx.AccountManager,
engine: eth.CreateConsensusEngine(ctx, config, chainConfig, chainDb),
shutdownChan: make(chan bool),
networkId: config.NetworkId,
bloomRequests: make(chan chan *bloombits.Retrieval),
bloomIndexer: eth.NewBloomIndexer(chainDb, light.BloomTrieFrequency),
chtIndexer: light.NewChtIndexer(chainDb, true),
bloomTrieIndexer: light.NewBloomTrieIndexer(chainDb, true),
}
eth.relay = NewLesTxRelay(peers, eth.reqDist)
eth.serverPool = newServerPool(chainDb, quitSync, &eth.wg)
eth.retriever = newRetrieveManager(peers, eth.reqDist, eth.serverPool)
eth.odr = NewLesOdr(chainDb, eth.retriever)
if eth.blockchain, err = light.NewLightChain(eth.odr, eth.chainConfig, eth.engine); err != nil {
leth.relay = NewLesTxRelay(peers, leth.reqDist)
leth.serverPool = newServerPool(chainDb, quitSync, &leth.wg)
leth.retriever = newRetrieveManager(peers, leth.reqDist, leth.serverPool)
leth.odr = NewLesOdr(chainDb, leth.chtIndexer, leth.bloomTrieIndexer, leth.bloomIndexer, leth.retriever)
if leth.blockchain, err = light.NewLightChain(leth.odr, leth.chainConfig, leth.engine); err != nil {
return nil, err
}
leth.bloomIndexer.Start(leth.blockchain)
// 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)
eth.blockchain.SetHead(compat.RewindTo)
leth.blockchain.SetHead(compat.RewindTo)
core.WriteChainConfig(chainDb, genesisHash, chainConfig)
}
eth.txPool = light.NewTxPool(eth.chainConfig, eth.blockchain, eth.relay)
if eth.protocolManager, err = NewProtocolManager(eth.chainConfig, true, config.NetworkId, eth.eventMux, eth.engine, eth.peers, eth.blockchain, nil, chainDb, eth.odr, eth.relay, quitSync, &eth.wg); err != nil {
leth.txPool = light.NewTxPool(leth.chainConfig, leth.blockchain, leth.relay)
if leth.protocolManager, err = NewProtocolManager(leth.chainConfig, true, ClientProtocolVersions, config.NetworkId, leth.eventMux, leth.engine, leth.peers, leth.blockchain, nil, chainDb, leth.odr, leth.relay, quitSync, &leth.wg); err != nil {
return nil, err
}
eth.ApiBackend = &LesApiBackend{eth, nil}
leth.ApiBackend = &LesApiBackend{leth, nil}
gpoParams := config.GPO
if gpoParams.Default == nil {
gpoParams.Default = config.GasPrice
}
eth.ApiBackend.gpo = gasprice.NewOracle(eth.ApiBackend, gpoParams)
return eth, nil
leth.ApiBackend.gpo = gasprice.NewOracle(leth.ApiBackend, gpoParams)
return leth, nil
}
func lesTopic(genesisHash common.Hash) discv5.Topic {
return discv5.Topic("LES@" + common.Bytes2Hex(genesisHash.Bytes()[0:8]))
func lesTopic(genesisHash common.Hash, protocolVersion uint) discv5.Topic {
var name string
switch protocolVersion {
case lpv1:
name = "LES"
case lpv2:
name = "LES2"
default:
panic(nil)
}
return discv5.Topic(name + common.Bytes2Hex(genesisHash.Bytes()[0:8]))
}
type LightDummyAPI struct{}
......@@ -200,9 +218,13 @@ func (s *LightEthereum) Protocols() []p2p.Protocol {
// Start implements node.Service, starting all internal goroutines needed by the
// Ethereum protocol implementation.
func (s *LightEthereum) Start(srvr *p2p.Server) error {
s.startBloomHandlers()
log.Warn("Light client mode is an experimental feature")
s.netRPCService = ethapi.NewPublicNetAPI(srvr, s.networkId)
s.serverPool.start(srvr, lesTopic(s.blockchain.Genesis().Hash()))
// search the topic belonging to the oldest supported protocol because
// servers always advertise all supported protocols
protocolVersion := ClientProtocolVersions[len(ClientProtocolVersions)-1]
s.serverPool.start(srvr, lesTopic(s.blockchain.Genesis().Hash(), protocolVersion))
s.protocolManager.Start()
return nil
}
......@@ -211,6 +233,15 @@ func (s *LightEthereum) Start(srvr *p2p.Server) error {
// Ethereum protocol.
func (s *LightEthereum) Stop() error {
s.odr.Stop()
if s.bloomIndexer != nil {
s.bloomIndexer.Close()
}
if s.chtIndexer != nil {
s.chtIndexer.Close()
}
if s.bloomTrieIndexer != nil {
s.bloomTrieIndexer.Close()
}
s.blockchain.Stop()
s.protocolManager.Stop()
s.txPool.Stop()
......
les/bloombits.go 0 → 100644
View file @ ca376ead
// Copyright 2017 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 (
"time"
"github.com/ethereum/go-ethereum/common/bitutil"
"github.com/ethereum/go-ethereum/light"
)
const (
// bloomServiceThreads is the number of goroutines used globally by an Ethereum
// instance to service bloombits lookups for all running filters.
bloomServiceThreads = 16
// bloomFilterThreads is the number of goroutines used locally per filter to
// multiplex requests onto the global servicing goroutines.
bloomFilterThreads = 3
// bloomRetrievalBatch is the maximum number of bloom bit retrievals to service
// in a single batch.
bloomRetrievalBatch = 16
// bloomRetrievalWait is the maximum time to wait for enough bloom bit requests
// to accumulate request an entire batch (avoiding hysteresis).
bloomRetrievalWait = time.Microsecond * 100
)
// startBloomHandlers starts a batch of goroutines to accept bloom bit database
// retrievals from possibly a range of filters and serving the data to satisfy.
func (eth *LightEthereum) startBloomHandlers() {
for i := 0; i < bloomServiceThreads; i++ {
go func() {
for {
select {
case <-eth.shutdownChan:
return
case request := <-eth.bloomRequests:
task := <-request
task.Bitsets = make([][]byte, len(task.Sections))
compVectors, err := light.GetBloomBits(task.Context, eth.odr, task.Bit, task.Sections)
if err == nil {
for i, _ := range task.Sections {
if blob, err := bitutil.DecompressBytes(compVectors[i], int(light.BloomTrieFrequency/8)); err == nil {
task.Bitsets[i] = blob
} else {
task.Error = err
}
}
} else {
task.Error = err
}
request <- task
}
}
}()
}
}
const (
// bloomConfirms is the number of confirmation blocks before a bloom section is
// considered probably final and its rotated bits are calculated.
bloomConfirms = 256
// bloomThrottling is the time to wait between processing two consecutive index
// sections. It's useful during chain upgrades to prevent disk overload.
bloomThrottling = 100 * time.Millisecond
)
les/handler.go
View file @ ca376ead
This diff is collapsed.
les/handler_test.go
View file @ ca376ead
......@@ -17,7 +17,10 @@
package les
import (
"bytes"
"math/big"
"math/rand"
"runtime"
"testing"
"github.com/ethereum/go-ethereum/common"
......@@ -26,7 +29,9 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
)
......@@ -39,9 +44,29 @@ func expectResponse(r p2p.MsgReader, msgcode, reqID, bv uint64, data interface{}
return p2p.ExpectMsg(r, msgcode, resp{reqID, bv, data})
}
func testCheckProof(t *testing.T, exp *light.NodeSet, got light.NodeList) {
if exp.KeyCount() > len(got) {
t.Errorf("proof has fewer nodes than expected")
return
}
if exp.KeyCount() < len(got) {
t.Errorf("proof has more nodes than expected")
return
}
for _, node := range got {
n, _ := exp.Get(crypto.Keccak256(node))
if !bytes.Equal(n, node) {
t.Errorf("proof contents mismatch")
return
}
}
}
// Tests that block headers can be retrieved from a remote chain based on user queries.
func TestGetBlockHeadersLes1(t *testing.T) { testGetBlockHeaders(t, 1) }
func TestGetBlockHeadersLes2(t *testing.T) { testGetBlockHeaders(t, 2) }
func testGetBlockHeaders(t *testing.T, protocol int) {
db, _ := ethdb.NewMemDatabase()
pm := newTestProtocolManagerMust(t, false, downloader.MaxHashFetch+15, nil, nil, nil, db)
......@@ -171,6 +196,8 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
// Tests that block contents can be retrieved from a remote chain based on their hashes.
func TestGetBlockBodiesLes1(t *testing.T) { testGetBlockBodies(t, 1) }
func TestGetBlockBodiesLes2(t *testing.T) { testGetBlockBodies(t, 2) }
func testGetBlockBodies(t *testing.T, protocol int) {
db, _ := ethdb.NewMemDatabase()
pm := newTestProtocolManagerMust(t, false, downloader.MaxBlockFetch+15, nil, nil, nil, db)
......@@ -247,6 +274,8 @@ func testGetBlockBodies(t *testing.T, protocol int) {
// Tests that the contract codes can be retrieved based on account addresses.
func TestGetCodeLes1(t *testing.T) { testGetCode(t, 1) }
func TestGetCodeLes2(t *testing.T) { testGetCode(t, 2) }
func testGetCode(t *testing.T, protocol int) {
// Assemble the test environment
db, _ := ethdb.NewMemDatabase()
......@@ -280,6 +309,8 @@ func testGetCode(t *testing.T, protocol int) {
// Tests that the transaction receipts can be retrieved based on hashes.
func TestGetReceiptLes1(t *testing.T) { testGetReceipt(t, 1) }
func TestGetReceiptLes2(t *testing.T) { testGetReceipt(t, 2) }
func testGetReceipt(t *testing.T, protocol int) {
// Assemble the test environment
db, _ := ethdb.NewMemDatabase()
......@@ -307,6 +338,8 @@ func testGetReceipt(t *testing.T, protocol int) {
// Tests that trie merkle proofs can be retrieved
func TestGetProofsLes1(t *testing.T) { testGetProofs(t, 1) }
func TestGetProofsLes2(t *testing.T) { testGetProofs(t, 2) }
func testGetProofs(t *testing.T, protocol int) {
// Assemble the test environment
db, _ := ethdb.NewMemDatabase()
......@@ -315,8 +348,11 @@ func testGetProofs(t *testing.T, protocol int) {
peer, _ := newTestPeer(t, "peer", protocol, pm, true)
defer peer.close()
var proofreqs []ProofReq
var proofs [][]rlp.RawValue
var (
proofreqs []ProofReq
proofsV1 [][]rlp.RawValue
)
proofsV2 := light.NewNodeSet()
accounts := []common.Address{testBankAddress, acc1Addr, acc2Addr, {}}
for i := uint64(0); i <= bc.CurrentBlock().NumberU64(); i++ {
......@@ -331,14 +367,124 @@ func testGetProofs(t *testing.T, protocol int) {
}
proofreqs = append(proofreqs, req)
proof := trie.Prove(crypto.Keccak256(acc[:]))
proofs = append(proofs, proof)
switch protocol {
case 1:
var proof light.NodeList
trie.Prove(crypto.Keccak256(acc[:]), 0, &proof)
proofsV1 = append(proofsV1, proof)
case 2:
trie.Prove(crypto.Keccak256(acc[:]), 0, proofsV2)
}
}
}
// Send the proof request and verify the response
cost := peer.GetRequestCost(GetProofsMsg, len(proofreqs))
sendRequest(peer.app, GetProofsMsg, 42, cost, proofreqs)
if err := expectResponse(peer.app, ProofsMsg, 42, testBufLimit, proofs); err != nil {
t.Errorf("proofs mismatch: %v", err)
switch protocol {
case 1:
cost := peer.GetRequestCost(GetProofsV1Msg, len(proofreqs))
sendRequest(peer.app, GetProofsV1Msg, 42, cost, proofreqs)
if err := expectResponse(peer.app, ProofsV1Msg, 42, testBufLimit, proofsV1); err != nil {
t.Errorf("proofs mismatch: %v", err)
}
case 2:
cost := peer.GetRequestCost(GetProofsV2Msg, len(proofreqs))
sendRequest(peer.app, GetProofsV2Msg, 42, cost, proofreqs)
msg, err := peer.app.ReadMsg()
if err != nil {
t.Errorf("Message read error: %v", err)
}
var resp struct {
ReqID, BV uint64
Data light.NodeList
}
if err := msg.Decode(&resp); err != nil {
t.Errorf("reply decode error: %v", err)
}
if msg.Code != ProofsV2Msg {
t.Errorf("Message code mismatch")
}
if resp.ReqID != 42 {
t.Errorf("ReqID mismatch")
}
if resp.BV != testBufLimit {
t.Errorf("BV mismatch")
}
testCheckProof(t, proofsV2, resp.Data)
}
}
func TestTransactionStatusLes2(t *testing.T) {
db, _ := ethdb.NewMemDatabase()
pm := newTestProtocolManagerMust(t, false, 0, nil, nil, nil, db)
chain := pm.blockchain.(*core.BlockChain)
txpool := core.NewTxPool(core.DefaultTxPoolConfig, params.TestChainConfig, chain)
pm.txpool = txpool
peer, _ := newTestPeer(t, "peer", 2, pm, true)
defer peer.close()
var reqID uint64
test := func(tx *types.Transaction, send bool, expStatus core.TxStatusData) {
reqID++
if send {
cost := peer.GetRequestCost(SendTxV2Msg, 1)
sendRequest(peer.app, SendTxV2Msg, reqID, cost, types.Transactions{tx})
} else {
cost := peer.GetRequestCost(GetTxStatusMsg, 1)
sendRequest(peer.app, GetTxStatusMsg, reqID, cost, []common.Hash{tx.Hash()})
}
if err := expectResponse(peer.app, TxStatusMsg, reqID, testBufLimit, []core.TxStatusData{expStatus}); err != nil {
t.Errorf("transaction status mismatch")
}
}
signer := types.HomesteadSigner{}
// test error status by sending an underpriced transaction
tx0, _ := types.SignTx(types.NewTransaction(0, acc1Addr, big.NewInt(10000), bigTxGas, nil, nil), signer, testBankKey)
test(tx0, true, core.TxStatusData{Status: core.TxStatusError, Data: []byte("transaction underpriced")})
tx1, _ := types.SignTx(types.NewTransaction(0, acc1Addr, big.NewInt(10000), bigTxGas, big.NewInt(100000000000), nil), signer, testBankKey)
test(tx1, false, core.TxStatusData{Status: core.TxStatusUnknown}) // query before sending, should be unknown
test(tx1, true, core.TxStatusData{Status: core.TxStatusPending}) // send valid processable tx, should return pending
test(tx1, true, core.TxStatusData{Status: core.TxStatusPending}) // adding it again should not return an error
tx2, _ := types.SignTx(types.NewTransaction(1, acc1Addr, big.NewInt(10000), bigTxGas, big.NewInt(100000000000), nil), signer, testBankKey)
tx3, _ := types.SignTx(types.NewTransaction(2, acc1Addr, big.NewInt(10000), bigTxGas, big.NewInt(100000000000), nil), signer, testBankKey)
// send transactions in the wrong order, tx3 should be queued
test(tx3, true, core.TxStatusData{Status: core.TxStatusQueued})
test(tx2, true, core.TxStatusData{Status: core.TxStatusPending})
// query again, now tx3 should be pending too
test(tx3, false, core.TxStatusData{Status: core.TxStatusPending})
// generate and add a block with tx1 and tx2 included
gchain, _ := core.GenerateChain(params.TestChainConfig, chain.GetBlockByNumber(0), db, 1, func(i int, block *core.BlockGen) {
block.AddTx(tx1)
block.AddTx(tx2)
})
if _, err := chain.InsertChain(gchain); err != nil {
panic(err)
}
// check if their status is included now
block1hash := core.GetCanonicalHash(db, 1)
tx1pos, _ := rlp.EncodeToBytes(core.TxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 0})
tx2pos, _ := rlp.EncodeToBytes(core.TxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 1})
test(tx1, false, core.TxStatusData{Status: core.TxStatusIncluded, Data: tx1pos})
test(tx2, false, core.TxStatusData{Status: core.TxStatusIncluded, Data: tx2pos})
// create a reorg that rolls them back
gchain, _ = core.GenerateChain(params.TestChainConfig, chain.GetBlockByNumber(0), db, 2, func(i int, block *core.BlockGen) {})
if _, err := chain.InsertChain(gchain); err != nil {
panic(err)
}
// wait until TxPool processes the reorg
for {
if pending, _ := txpool.Stats(); pending == 3 {
break
}
runtime.Gosched()
}
// check if their status is pending again
test(tx1, false, core.TxStatusData{Status: core.TxStatusPending})
test(tx2, false, core.TxStatusData{Status: core.TxStatusPending})
}
les/helper_test.go
View file @ ca376ead
......@@ -43,7 +43,7 @@ import (
var (
testBankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
testBankAddress = crypto.PubkeyToAddress(testBankKey.PublicKey)
testBankFunds = big.NewInt(1000000)
testBankFunds = big.NewInt(1000000000000000000)
acc1Key, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
acc2Key, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
......@@ -156,7 +156,13 @@ func newTestProtocolManager(lightSync bool, blocks int, generator func(int, *cor
chain = blockchain
}
pm, err := NewProtocolManager(gspec.Config, lightSync, NetworkId, evmux, engine, peers, chain, nil, db, odr, nil, make(chan struct{}), new(sync.WaitGroup))
var protocolVersions []uint
if lightSync {
protocolVersions = ClientProtocolVersions
} else {
protocolVersions = ServerProtocolVersions
}
pm, err := NewProtocolManager(gspec.Config, lightSync, protocolVersions, NetworkId, evmux, engine, peers, chain, nil, db, odr, nil, make(chan struct{}), new(sync.WaitGroup))
if err != nil {
return nil, err
}
......
les/odr.go
View file @ ca376ead
......@@ -19,6 +19,7 @@ package les
import (
"context"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/log"
......@@ -26,33 +27,56 @@ import (
// LesOdr implements light.OdrBackend
type LesOdr struct {
db ethdb.Database
stop chan struct{}
retriever *retrieveManager
db ethdb.Database
chtIndexer, bloomTrieIndexer, bloomIndexer *core.ChainIndexer
retriever *retrieveManager
stop chan struct{}
}
func NewLesOdr(db ethdb.Database, retriever *retrieveManager) *LesOdr {
func NewLesOdr(db ethdb.Database, chtIndexer, bloomTrieIndexer, bloomIndexer *core.ChainIndexer, retriever *retrieveManager) *LesOdr {
return &LesOdr{
db: db,
retriever: retriever,
stop: make(chan struct{}),
db: db,
chtIndexer: chtIndexer,
bloomTrieIndexer: bloomTrieIndexer,
bloomIndexer: bloomIndexer,
retriever: retriever,
stop: make(chan struct{}),
}
}
// Stop cancels all pending retrievals
func (odr *LesOdr) Stop() {
close(odr.stop)
}
// Database returns the backing database
func (odr *LesOdr) Database() ethdb.Database {
return odr.db
}
// ChtIndexer returns the CHT chain indexer
func (odr *LesOdr) ChtIndexer() *core.ChainIndexer {
return odr.chtIndexer
}
// BloomTrieIndexer returns the bloom trie chain indexer
func (odr *LesOdr) BloomTrieIndexer() *core.ChainIndexer {
return odr.bloomTrieIndexer
}
// BloomIndexer returns the bloombits chain indexer
func (odr *LesOdr) BloomIndexer() *core.ChainIndexer {
return odr.bloomIndexer
}
const (
MsgBlockBodies = iota
MsgCode
MsgReceipts
MsgProofs
MsgProofsV1
MsgProofsV2
MsgHeaderProofs
MsgHelperTrieProofs
)
// Msg encodes a LES message that delivers reply data for a request
......@@ -64,7 +88,7 @@ type Msg struct {
// Retrieve tries to fetch an object from the LES network.
// If the network retrieval was successful, it stores the object in local db.
func (self *LesOdr) Retrieve(ctx context.Context, req light.OdrRequest) (err error) {
func (odr *LesOdr) Retrieve(ctx context.Context, req light.OdrRequest) (err error) {
lreq := LesRequest(req)
reqID := genReqID()
......@@ -84,9 +108,9 @@ func (self *LesOdr) Retrieve(ctx context.Context, req light.OdrRequest) (err err
},
}
if err = self.retriever.retrieve(ctx, reqID, rq, func(p distPeer, msg *Msg) error { return lreq.Validate(self.db, msg) }); err == nil {
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(self.db)
req.StoreResult(odr.db)
} else {
log.Debug("Failed to retrieve data from network", "err", err)
}
......
les/odr_requests.go
View file @ ca376ead
This diff is collapsed.
les/odr_test.go
View file @ ca376ead
......@@ -29,6 +29,7 @@ import (
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/params"
......@@ -39,6 +40,8 @@ type odrTestFn func(ctx context.Context, db ethdb.Database, config *params.Chain
func TestOdrGetBlockLes1(t *testing.T) { testOdr(t, 1, 1, odrGetBlock) }
func TestOdrGetBlockLes2(t *testing.T) { testOdr(t, 2, 1, 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
if bc != nil {
......@@ -55,6 +58,8 @@ func odrGetBlock(ctx context.Context, db ethdb.Database, config *params.ChainCon
func TestOdrGetReceiptsLes1(t *testing.T) { testOdr(t, 1, 1, odrGetReceipts) }
func TestOdrGetReceiptsLes2(t *testing.T) { testOdr(t, 2, 1, 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
if bc != nil {
......@@ -71,6 +76,8 @@ func odrGetReceipts(ctx context.Context, db ethdb.Database, config *params.Chain
func TestOdrAccountsLes1(t *testing.T) { testOdr(t, 1, 1, odrAccounts) }
func TestOdrAccountsLes2(t *testing.T) { testOdr(t, 2, 1, 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")
acc := []common.Address{testBankAddress, acc1Addr, acc2Addr, dummyAddr}
......@@ -100,6 +107,8 @@ func odrAccounts(ctx context.Context, db ethdb.Database, config *params.ChainCon
func TestOdrContractCallLes1(t *testing.T) { testOdr(t, 1, 2, odrContractCall) }
func TestOdrContractCallLes2(t *testing.T) { testOdr(t, 2, 2, odrContractCall) }
type callmsg struct {
types.Message
}
......@@ -154,7 +163,7 @@ func testOdr(t *testing.T, protocol int, expFail uint64, fn odrTestFn) {
rm := newRetrieveManager(peers, dist, nil)
db, _ := ethdb.NewMemDatabase()
ldb, _ := ethdb.NewMemDatabase()
odr := NewLesOdr(ldb, rm)
odr := NewLesOdr(ldb, light.NewChtIndexer(db, true), light.NewBloomTrieIndexer(db, true), eth.NewBloomIndexer(db, light.BloomTrieFrequency), rm)
pm := newTestProtocolManagerMust(t, false, 4, testChainGen, nil, nil, db)
lpm := newTestProtocolManagerMust(t, true, 0, nil, peers, odr, ldb)
_, err1, lpeer, err2 := newTestPeerPair("peer", protocol, pm, lpm)
......
les/peer.go
View file @ ca376ead
......@@ -18,6 +18,8 @@
package les
import (
"crypto/ecdsa"
"encoding/binary"
"errors"
"fmt"
"math/big"
......@@ -25,9 +27,11 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"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"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/rlp"
)
......@@ -40,14 +44,23 @@ var (
const maxResponseErrors = 50 // number of invalid responses tolerated (makes the protocol less brittle but still avoids spam)
const (
announceTypeNone = iota
announceTypeSimple
announceTypeSigned
)
type peer struct {
*p2p.Peer
pubKey *ecdsa.PublicKey
rw p2p.MsgReadWriter
version int // Protocol version negotiated
network uint64 // Network ID being on
announceType, requestAnnounceType uint64
id string
headInfo *announceData
......@@ -68,9 +81,11 @@ type peer struct {
func newPeer(version int, network uint64, p *p2p.Peer, rw p2p.MsgReadWriter) *peer {
id := p.ID()
pubKey, _ := id.Pubkey()
return &peer{
Peer: p,
pubKey: pubKey,
rw: rw,
version: version,
network: network,
......@@ -197,16 +212,31 @@ func (p *peer) SendReceiptsRLP(reqID, bv uint64, receipts []rlp.RawValue) error
return sendResponse(p.rw, ReceiptsMsg, reqID, bv, receipts)
}
// SendProofs sends a batch of merkle proofs, corresponding to the ones requested.
// SendProofs sends a batch of legacy LES/1 merkle proofs, corresponding to the ones requested.
func (p *peer) SendProofs(reqID, bv uint64, proofs proofsData) error {
return sendResponse(p.rw, ProofsMsg, reqID, bv, proofs)
return sendResponse(p.rw, ProofsV1Msg, reqID, bv, proofs)
}
// SendHeaderProofs sends a batch of header proofs, corresponding to the ones requested.
// SendProofsV2 sends a batch of merkle proofs, corresponding to the ones requested.
func (p *peer) SendProofsV2(reqID, bv uint64, proofs light.NodeList) error {
return sendResponse(p.rw, ProofsV2Msg, reqID, bv, proofs)
}
// SendHeaderProofs sends a batch of legacy LES/1 header proofs, corresponding to the ones requested.
func (p *peer) SendHeaderProofs(reqID, bv uint64, proofs []ChtResp) error {
return sendResponse(p.rw, HeaderProofsMsg, reqID, bv, proofs)
}
// SendHelperTrieProofs sends a batch of HelperTrie proofs, corresponding to the ones requested.
func (p *peer) SendHelperTrieProofs(reqID, bv uint64, resp HelperTrieResps) error {
return sendResponse(p.rw, HelperTrieProofsMsg, reqID, bv, resp)
}
// SendTxStatus sends a batch of transaction status records, corresponding to the ones requested.
func (p *peer) SendTxStatus(reqID, bv uint64, status []core.TxStatusData) error {
return sendResponse(p.rw, TxStatusMsg, reqID, bv, status)
}
// RequestHeadersByHash fetches a batch of blocks' headers corresponding to the
// specified header query, based on the hash of an origin block.
func (p *peer) RequestHeadersByHash(reqID, cost uint64, origin common.Hash, amount int, skip int, reverse bool) error {
......@@ -230,7 +260,7 @@ func (p *peer) RequestBodies(reqID, cost uint64, hashes []common.Hash) error {
// RequestCode fetches a batch of arbitrary data from a node's known state
// data, corresponding to the specified hashes.
func (p *peer) RequestCode(reqID, cost uint64, reqs []*CodeReq) error {
func (p *peer) RequestCode(reqID, cost uint64, reqs []CodeReq) error {
p.Log().Debug("Fetching batch of codes", "count", len(reqs))
return sendRequest(p.rw, GetCodeMsg, reqID, cost, reqs)
}
......@@ -242,20 +272,58 @@ func (p *peer) RequestReceipts(reqID, cost uint64, hashes []common.Hash) error {
}
// RequestProofs fetches a batch of merkle proofs from a remote node.
func (p *peer) RequestProofs(reqID, cost uint64, reqs []*ProofReq) error {
func (p *peer) RequestProofs(reqID, cost uint64, reqs []ProofReq) error {
p.Log().Debug("Fetching batch of proofs", "count", len(reqs))
return sendRequest(p.rw, GetProofsMsg, reqID, cost, reqs)
switch p.version {
case lpv1:
return sendRequest(p.rw, GetProofsV1Msg, reqID, cost, reqs)
case lpv2:
return sendRequest(p.rw, GetProofsV2Msg, reqID, cost, reqs)
default:
panic(nil)
}
}
// RequestHelperTrieProofs fetches a batch of HelperTrie merkle proofs from a remote node.
func (p *peer) RequestHelperTrieProofs(reqID, cost uint64, reqs []HelperTrieReq) error {
p.Log().Debug("Fetching batch of HelperTrie proofs", "count", len(reqs))
switch p.version {
case lpv1:
reqsV1 := make([]ChtReq, len(reqs))
for i, req := range reqs {
if req.HelperTrieType != htCanonical || req.AuxReq != auxHeader || len(req.Key) != 8 {
return fmt.Errorf("Request invalid in LES/1 mode")
}
blockNum := binary.BigEndian.Uint64(req.Key)
// convert HelperTrie request to old CHT request
reqsV1[i] = ChtReq{ChtNum: (req.TrieIdx+1)*(light.ChtFrequency/light.ChtV1Frequency) - 1, BlockNum: blockNum, FromLevel: req.FromLevel}
}
return sendRequest(p.rw, GetHeaderProofsMsg, reqID, cost, reqsV1)
case lpv2:
return sendRequest(p.rw, GetHelperTrieProofsMsg, reqID, cost, reqs)
default:
panic(nil)
}
}
// RequestHeaderProofs fetches a batch of header merkle proofs from a remote node.
func (p *peer) RequestHeaderProofs(reqID, cost uint64, reqs []*ChtReq) error {
p.Log().Debug("Fetching batch of header proofs", "count", len(reqs))
return sendRequest(p.rw, GetHeaderProofsMsg, reqID, cost, reqs)
// RequestTxStatus fetches a batch of transaction status records from a remote node.
func (p *peer) RequestTxStatus(reqID, cost uint64, txHashes []common.Hash) error {
p.Log().Debug("Requesting transaction status", "count", len(txHashes))
return sendRequest(p.rw, GetTxStatusMsg, reqID, cost, txHashes)
}
// SendTxStatus sends a batch of transactions to be added to the remote transaction pool.
func (p *peer) SendTxs(reqID, cost uint64, txs types.Transactions) error {
p.Log().Debug("Fetching batch of transactions", "count", len(txs))
return p2p.Send(p.rw, SendTxMsg, txs)
switch p.version {
case lpv1:
return p2p.Send(p.rw, SendTxMsg, txs) // old message format does not include reqID
case lpv2:
return sendRequest(p.rw, SendTxV2Msg, reqID, cost, txs)
default:
panic(nil)
}
}
type keyValueEntry struct {
......@@ -289,7 +357,7 @@ func (l keyValueList) decode() keyValueMap {
func (m keyValueMap) get(key string, val interface{}) error {
enc, ok := m[key]
if !ok {
return errResp(ErrHandshakeMissingKey, "%s", key)
return errResp(ErrMissingKey, "%s", key)
}
if val == nil {
return nil
......@@ -348,6 +416,9 @@ func (p *peer) Handshake(td *big.Int, head common.Hash, headNum uint64, genesis
list := server.fcCostStats.getCurrentList()
send = send.add("flowControl/MRC", list)
p.fcCosts = list.decode()
} else {
p.requestAnnounceType = announceTypeSimple // set to default until "very light" client mode is implemented
send = send.add("announceType", p.requestAnnounceType)
}
recvList, err := p.sendReceiveHandshake(send)
if err != nil {
......@@ -392,6 +463,9 @@ func (p *peer) Handshake(td *big.Int, head common.Hash, headNum uint64, genesis
/*if recv.get("serveStateSince", nil) == nil {
return errResp(ErrUselessPeer, "wanted client, got server")
}*/
if recv.get("announceType", &p.announceType) != nil {
p.announceType = announceTypeSimple
}
p.fcClient = flowcontrol.NewClientNode(server.fcManager, server.defParams)
} else {
if recv.get("serveChainSince", nil) != nil {
......@@ -456,11 +530,15 @@ func newPeerSet() *peerSet {
// notify adds a service to be notified about added or removed peers
func (ps *peerSet) notify(n peerSetNotify) {
ps.lock.Lock()
defer ps.lock.Unlock()
ps.notifyList = append(ps.notifyList, n)
peers := make([]*peer, 0, len(ps.peers))
for _, p := range ps.peers {
go n.registerPeer(p)
peers = append(peers, p)
}
ps.lock.Unlock()
for _, p := range peers {
n.registerPeer(p)
}
}
......@@ -468,8 +546,6 @@ func (ps *peerSet) notify(n peerSetNotify) {
// peer is already known.
func (ps *peerSet) Register(p *peer) error {
ps.lock.Lock()
defer ps.lock.Unlock()
if ps.closed {
return errClosed
}
......@@ -478,8 +554,12 @@ func (ps *peerSet) Register(p *peer) error {
}
ps.peers[p.id] = p
p.sendQueue = newExecQueue(100)
for _, n := range ps.notifyList {
go n.registerPeer(p)
peers := make([]peerSetNotify, len(ps.notifyList))
copy(peers, ps.notifyList)
ps.lock.Unlock()
for _, n := range peers {
n.registerPeer(p)
}
return nil
}
......@@ -488,19 +568,22 @@ func (ps *peerSet) Register(p *peer) error {
// actions to/from that particular entity. It also initiates disconnection at the networking layer.
func (ps *peerSet) Unregister(id string) error {
ps.lock.Lock()
defer ps.lock.Unlock()
if p, ok := ps.peers[id]; !ok {
ps.lock.Unlock()
return errNotRegistered
} else {
for _, n := range ps.notifyList {
go n.unregisterPeer(p)
delete(ps.peers, id)
peers := make([]peerSetNotify, len(ps.notifyList))
copy(peers, ps.notifyList)
ps.lock.Unlock()
for _, n := range peers {
n.unregisterPeer(p)
}
p.sendQueue.quit()
p.Peer.Disconnect(p2p.DiscUselessPeer)
return nil
}
delete(ps.peers, id)
return nil
}
// AllPeerIDs returns a list of all registered peer IDs
......
les/protocol.go
View file @ ca376ead
......@@ -18,24 +18,34 @@
package les
import (
"bytes"
"crypto/ecdsa"
"crypto/elliptic"
"errors"
"fmt"
"io"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/crypto/secp256k1"
"github.com/ethereum/go-ethereum/rlp"
)
// Constants to match up protocol versions and messages
const (
lpv1 = 1
lpv2 = 2
)
// Supported versions of the les protocol (first is primary).
var ProtocolVersions = []uint{lpv1}
// Supported versions of the les protocol (first is primary)
var (
ClientProtocolVersions = []uint{lpv2, lpv1}
ServerProtocolVersions = []uint{lpv2, lpv1}
)
// Number of implemented message corresponding to different protocol versions.
var ProtocolLengths = []uint64{15}
var ProtocolLengths = map[uint]uint64{lpv1: 15, lpv2: 22}
const (
NetworkId = 1
......@@ -53,13 +63,21 @@ const (
BlockBodiesMsg = 0x05
GetReceiptsMsg = 0x06
ReceiptsMsg = 0x07
GetProofsMsg = 0x08
ProofsMsg = 0x09
GetProofsV1Msg = 0x08
ProofsV1Msg = 0x09
GetCodeMsg = 0x0a
CodeMsg = 0x0b
SendTxMsg = 0x0c
GetHeaderProofsMsg = 0x0d
HeaderProofsMsg = 0x0e
// Protocol messages belonging to LPV2
GetProofsV2Msg = 0x0f
ProofsV2Msg = 0x10
GetHelperTrieProofsMsg = 0x11
HelperTrieProofsMsg = 0x12
SendTxV2Msg = 0x13
GetTxStatusMsg = 0x14
TxStatusMsg = 0x15
)
type errCode int
......@@ -79,7 +97,7 @@ const (
ErrUnexpectedResponse
ErrInvalidResponse
ErrTooManyTimeouts
ErrHandshakeMissingKey
ErrMissingKey
)
func (e errCode) String() string {
......@@ -101,7 +119,13 @@ var errorToString = map[int]string{
ErrUnexpectedResponse: "Unexpected response",
ErrInvalidResponse: "Invalid response",
ErrTooManyTimeouts: "Too many request timeouts",
ErrHandshakeMissingKey: "Key missing from handshake message",
ErrMissingKey: "Key missing from list",
}
type announceBlock struct {
Hash common.Hash // Hash of one particular block being announced
Number uint64 // Number of one particular block being announced
Td *big.Int // Total difficulty of one particular block being announced
}
// announceData is the network packet for the block announcements.
......@@ -113,6 +137,32 @@ type announceData struct {
Update keyValueList
}
// sign adds a signature to the block announcement by the given privKey
func (a *announceData) sign(privKey *ecdsa.PrivateKey) {
rlp, _ := rlp.EncodeToBytes(announceBlock{a.Hash, a.Number, a.Td})
sig, _ := crypto.Sign(crypto.Keccak256(rlp), privKey)
a.Update = a.Update.add("sign", sig)
}
// checkSignature verifies if the block announcement has a valid signature by the given pubKey
func (a *announceData) checkSignature(pubKey *ecdsa.PublicKey) error {
var sig []byte
if err := a.Update.decode().get("sign", &sig); err != nil {
return err
}
rlp, _ := rlp.EncodeToBytes(announceBlock{a.Hash, a.Number, a.Td})
recPubkey, err := secp256k1.RecoverPubkey(crypto.Keccak256(rlp), sig)
if err != nil {
return err
}
pbytes := elliptic.Marshal(pubKey.Curve, pubKey.X, pubKey.Y)
if bytes.Equal(pbytes, recPubkey) {
return nil
} else {
return errors.New("Wrong signature")
}
}
type blockInfo struct {
Hash common.Hash // Hash of one particular block being announced
Number uint64 // Number of one particular block being announced
......
les/request_test.go
View file @ ca376ead
......@@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
)
......@@ -38,24 +39,32 @@ type accessTestFn func(db ethdb.Database, bhash common.Hash, number uint64) ligh
func TestBlockAccessLes1(t *testing.T) { testAccess(t, 1, tfBlockAccess) }
func TestBlockAccessLes2(t *testing.T) { testAccess(t, 2, tfBlockAccess) }
func tfBlockAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.BlockRequest{Hash: bhash, Number: number}
}
func TestReceiptsAccessLes1(t *testing.T) { testAccess(t, 1, tfReceiptsAccess) }
func TestReceiptsAccessLes2(t *testing.T) { testAccess(t, 2, tfReceiptsAccess) }
func tfReceiptsAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.ReceiptsRequest{Hash: bhash, Number: number}
}
func TestTrieEntryAccessLes1(t *testing.T) { testAccess(t, 1, tfTrieEntryAccess) }
func TestTrieEntryAccessLes2(t *testing.T) { testAccess(t, 2, tfTrieEntryAccess) }
func tfTrieEntryAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.TrieRequest{Id: light.StateTrieID(core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))), Key: testBankSecureTrieKey}
}
func TestCodeAccessLes1(t *testing.T) { testAccess(t, 1, tfCodeAccess) }
func TestCodeAccessLes2(t *testing.T) { testAccess(t, 2, tfCodeAccess) }
func tfCodeAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
header := core.GetHeader(db, bhash, core.GetBlockNumber(db, bhash))
if header.Number.Uint64() < testContractDeployed {
......@@ -73,7 +82,7 @@ func testAccess(t *testing.T, protocol int, fn accessTestFn) {
rm := newRetrieveManager(peers, dist, nil)
db, _ := ethdb.NewMemDatabase()
ldb, _ := ethdb.NewMemDatabase()
odr := NewLesOdr(ldb, rm)
odr := NewLesOdr(ldb, light.NewChtIndexer(db, true), light.NewBloomTrieIndexer(db, true), eth.NewBloomIndexer(db, light.BloomTrieFrequency), rm)
pm := newTestProtocolManagerMust(t, false, 4, testChainGen, nil, nil, db)
lpm := newTestProtocolManagerMust(t, true, 0, nil, peers, odr, ldb)
......
les/retrieve.go
View file @ ca376ead
......@@ -22,6 +22,7 @@ import (
"context"
"crypto/rand"
"encoding/binary"
"fmt"
"sync"
"time"
......@@ -111,12 +112,14 @@ func newRetrieveManager(peers *peerSet, dist *requestDistributor, serverPool pee
// that is delivered through the deliver function and successfully validated by the
// validator callback. It returns when a valid answer is delivered or the context is
// cancelled.
func (rm *retrieveManager) retrieve(ctx context.Context, reqID uint64, req *distReq, val validatorFunc) error {
func (rm *retrieveManager) retrieve(ctx context.Context, reqID uint64, req *distReq, val validatorFunc, shutdown chan struct{}) error {
sentReq := rm.sendReq(reqID, req, val)
select {
case <-sentReq.stopCh:
case <-ctx.Done():
sentReq.stop(ctx.Err())
case <-shutdown:
sentReq.stop(fmt.Errorf("Client is shutting down"))
}
return sentReq.getError()
}
......
les/server.go
View file @ ca376ead
......@@ -18,10 +18,11 @@
package les
import (
"crypto/ecdsa"
"encoding/binary"
"fmt"
"math"
"sync"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
......@@ -34,7 +35,6 @@ import (
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
)
type LesServer struct {
......@@ -42,23 +42,55 @@ type LesServer struct {
fcManager *flowcontrol.ClientManager // nil if our node is client only
fcCostStats *requestCostStats
defParams *flowcontrol.ServerParams
lesTopic discv5.Topic
lesTopics []discv5.Topic
privateKey *ecdsa.PrivateKey
quitSync chan struct{}
chtIndexer, bloomTrieIndexer *core.ChainIndexer
}
func NewLesServer(eth *eth.Ethereum, config *eth.Config) (*LesServer, error) {
quitSync := make(chan struct{})
pm, err := NewProtocolManager(eth.BlockChain().Config(), false, config.NetworkId, eth.EventMux(), eth.Engine(), newPeerSet(), eth.BlockChain(), eth.TxPool(), eth.ChainDb(), nil, nil, quitSync, new(sync.WaitGroup))
pm, err := NewProtocolManager(eth.BlockChain().Config(), false, ServerProtocolVersions, config.NetworkId, eth.EventMux(), eth.Engine(), newPeerSet(), eth.BlockChain(), eth.TxPool(), eth.ChainDb(), nil, nil, quitSync, new(sync.WaitGroup))
if err != nil {
return nil, err
}
pm.blockLoop()
lesTopics := make([]discv5.Topic, len(ServerProtocolVersions))
for i, pv := range ServerProtocolVersions {
lesTopics[i] = lesTopic(eth.BlockChain().Genesis().Hash(), pv)
}
srv := &LesServer{
protocolManager: pm,
quitSync: quitSync,
lesTopic: lesTopic(eth.BlockChain().Genesis().Hash()),
protocolManager: pm,
quitSync: quitSync,
lesTopics: lesTopics,
chtIndexer: light.NewChtIndexer(eth.ChainDb(), false),
bloomTrieIndexer: light.NewBloomTrieIndexer(eth.ChainDb(), false),
}
logger := log.New()
chtV1SectionCount, _, _ := srv.chtIndexer.Sections() // indexer still uses LES/1 4k section size for backwards server compatibility
chtV2SectionCount := chtV1SectionCount / (light.ChtFrequency / light.ChtV1Frequency)
if chtV2SectionCount != 0 {
// convert to LES/2 section
chtLastSection := chtV2SectionCount - 1
// convert last LES/2 section index back to LES/1 index for chtIndexer.SectionHead
chtLastSectionV1 := (chtLastSection+1)*(light.ChtFrequency/light.ChtV1Frequency) - 1
chtSectionHead := srv.chtIndexer.SectionHead(chtLastSectionV1)
chtRoot := light.GetChtV2Root(pm.chainDb, chtLastSection, chtSectionHead)
logger.Info("CHT", "section", chtLastSection, "sectionHead", fmt.Sprintf("%064x", chtSectionHead), "root", fmt.Sprintf("%064x", chtRoot))
}
bloomTrieSectionCount, _, _ := srv.bloomTrieIndexer.Sections()
if bloomTrieSectionCount != 0 {
bloomTrieLastSection := bloomTrieSectionCount - 1
bloomTrieSectionHead := srv.bloomTrieIndexer.SectionHead(bloomTrieLastSection)
bloomTrieRoot := light.GetBloomTrieRoot(pm.chainDb, bloomTrieLastSection, bloomTrieSectionHead)
logger.Info("BloomTrie", "section", bloomTrieLastSection, "sectionHead", fmt.Sprintf("%064x", bloomTrieSectionHead), "root", fmt.Sprintf("%064x", bloomTrieRoot))
}
srv.chtIndexer.Start(eth.BlockChain())
pm.server = srv
srv.defParams = &flowcontrol.ServerParams{
......@@ -77,17 +109,28 @@ func (s *LesServer) Protocols() []p2p.Protocol {
// Start starts the LES server
func (s *LesServer) Start(srvr *p2p.Server) {
s.protocolManager.Start()
go func() {
logger := log.New("topic", s.lesTopic)
logger.Info("Starting topic registration")
defer logger.Info("Terminated topic registration")
for _, topic := range s.lesTopics {
topic := topic
go func() {
logger := log.New("topic", topic)
logger.Info("Starting topic registration")
defer logger.Info("Terminated topic registration")
srvr.DiscV5.RegisterTopic(topic, s.quitSync)
}()
}
s.privateKey = srvr.PrivateKey
s.protocolManager.blockLoop()
}
srvr.DiscV5.RegisterTopic(s.lesTopic, s.quitSync)
}()
func (s *LesServer) SetBloomBitsIndexer(bloomIndexer *core.ChainIndexer) {
bloomIndexer.AddChildIndexer(s.bloomTrieIndexer)
}
// Stop stops the LES service
func (s *LesServer) Stop() {
s.chtIndexer.Close()
// bloom trie indexer is closed by parent bloombits indexer
s.fcCostStats.store()
s.fcManager.Stop()
go func() {
......@@ -273,10 +316,7 @@ func (pm *ProtocolManager) blockLoop() {
pm.wg.Add(1)
headCh := make(chan core.ChainHeadEvent, 10)
headSub := pm.blockchain.SubscribeChainHeadEvent(headCh)
newCht := make(chan struct{}, 10)
newCht <- struct{}{}
go func() {
var mu sync.Mutex
var lastHead *types.Header
lastBroadcastTd := common.Big0
for {
......@@ -299,26 +339,37 @@ func (pm *ProtocolManager) blockLoop() {
log.Debug("Announcing block to peers", "number", number, "hash", hash, "td", td, "reorg", reorg)
announce := announceData{Hash: hash, Number: number, Td: td, ReorgDepth: reorg}
var (
signed bool
signedAnnounce announceData
)
for _, p := range peers {
select {
case p.announceChn <- announce:
default:
pm.removePeer(p.id)
switch p.announceType {
case announceTypeSimple:
select {
case p.announceChn <- announce:
default:
pm.removePeer(p.id)
}
case announceTypeSigned:
if !signed {
signedAnnounce = announce
signedAnnounce.sign(pm.server.privateKey)
signed = true
}
select {
case p.announceChn <- signedAnnounce:
default:
pm.removePeer(p.id)
}
}
}
}
}
newCht <- struct{}{}
case <-newCht:
go func() {
mu.Lock()
more := makeCht(pm.chainDb)
mu.Unlock()
if more {
time.Sleep(time.Millisecond * 10)
newCht <- struct{}{}
}
}()
case <-pm.quitSync:
headSub.Unsubscribe()
pm.wg.Done()
......@@ -327,86 +378,3 @@ func (pm *ProtocolManager) blockLoop() {
}
}()
}
var (
lastChtKey = []byte("LastChtNumber") // chtNum (uint64 big endian)
chtPrefix = []byte("cht") // chtPrefix + chtNum (uint64 big endian) -> trie root hash
)
func getChtRoot(db ethdb.Database, num uint64) common.Hash {
var encNumber [8]byte
binary.BigEndian.PutUint64(encNumber[:], num)
data, _ := db.Get(append(chtPrefix, encNumber[:]...))
return common.BytesToHash(data)
}
func storeChtRoot(db ethdb.Database, num uint64, root common.Hash) {
var encNumber [8]byte
binary.BigEndian.PutUint64(encNumber[:], num)
db.Put(append(chtPrefix, encNumber[:]...), root[:])
}
func makeCht(db ethdb.Database) bool {
headHash := core.GetHeadBlockHash(db)
headNum := core.GetBlockNumber(db, headHash)
var newChtNum uint64
if headNum > light.ChtConfirmations {
newChtNum = (headNum - light.ChtConfirmations) / light.ChtFrequency
}
var lastChtNum uint64
data, _ := db.Get(lastChtKey)
if len(data) == 8 {
lastChtNum = binary.BigEndian.Uint64(data[:])
}
if newChtNum <= lastChtNum {
return false
}
var t *trie.Trie
if lastChtNum > 0 {
var err error
t, err = trie.New(getChtRoot(db, lastChtNum), db)
if err != nil {
lastChtNum = 0
}
}
if lastChtNum == 0 {
t, _ = trie.New(common.Hash{}, db)
}
for num := lastChtNum * light.ChtFrequency; num < (lastChtNum+1)*light.ChtFrequency; num++ {
hash := core.GetCanonicalHash(db, num)
if hash == (common.Hash{}) {
panic("Canonical hash not found")
}
td := core.GetTd(db, hash, num)
if td == nil {
panic("TD not found")
}
var encNumber [8]byte
binary.BigEndian.PutUint64(encNumber[:], num)
var node light.ChtNode
node.Hash = hash
node.Td = td
data, _ := rlp.EncodeToBytes(node)
t.Update(encNumber[:], data)
}
root, err := t.Commit()
if err != nil {
lastChtNum = 0
} else {
lastChtNum++
log.Trace("Generated CHT", "number", lastChtNum, "root", root.Hex())
storeChtRoot(db, lastChtNum, root)
var data [8]byte
binary.BigEndian.PutUint64(data[:], lastChtNum)
db.Put(lastChtKey, data[:])
}
return newChtNum > lastChtNum
}
light/lightchain.go
View file @ ca376ead
......@@ -95,15 +95,8 @@ func NewLightChain(odr OdrBackend, config *params.ChainConfig, engine consensus.
if bc.genesisBlock == nil {
return nil, core.ErrNoGenesis
}
if bc.genesisBlock.Hash() == params.MainnetGenesisHash {
// add trusted CHT
WriteTrustedCht(bc.chainDb, TrustedCht{Number: 1040, Root: common.HexToHash("bb4fb4076cbe6923c8a8ce8f158452bbe19564959313466989fda095a60884ca")})
log.Info("Added trusted CHT for mainnet")
}
if bc.genesisBlock.Hash() == params.TestnetGenesisHash {
// add trusted CHT
WriteTrustedCht(bc.chainDb, TrustedCht{Number: 400, Root: common.HexToHash("2a4befa19e4675d939c3dc22dca8c6ae9fcd642be1f04b06bd6e4203cc304660")})
log.Info("Added trusted CHT for ropsten testnet")
if cp, ok := trustedCheckpoints[bc.genesisBlock.Hash()]; ok {
bc.addTrustedCheckpoint(cp)
}
if err := bc.loadLastState(); err != nil {
......@@ -120,6 +113,22 @@ func NewLightChain(odr OdrBackend, config *params.ChainConfig, engine consensus.
return bc, nil
}
// addTrustedCheckpoint adds a trusted checkpoint to the blockchain
func (self *LightChain) addTrustedCheckpoint(cp trustedCheckpoint) {
if self.odr.ChtIndexer() != nil {
StoreChtRoot(self.chainDb, cp.sectionIdx, cp.sectionHead, cp.chtRoot)
self.odr.ChtIndexer().AddKnownSectionHead(cp.sectionIdx, cp.sectionHead)
}
if self.odr.BloomTrieIndexer() != nil {
StoreBloomTrieRoot(self.chainDb, cp.sectionIdx, cp.sectionHead, cp.bloomTrieRoot)
self.odr.BloomTrieIndexer().AddKnownSectionHead(cp.sectionIdx, cp.sectionHead)
}
if self.odr.BloomIndexer() != nil {
self.odr.BloomIndexer().AddKnownSectionHead(cp.sectionIdx, cp.sectionHead)
}
log.Info("Added trusted checkpoint", "chain name", cp.name)
}
func (self *LightChain) getProcInterrupt() bool {
return atomic.LoadInt32(&self.procInterrupt) == 1
}
......@@ -449,10 +458,13 @@ func (self *LightChain) GetHeaderByNumberOdr(ctx context.Context, number uint64)
}
func (self *LightChain) SyncCht(ctx context.Context) bool {
if self.odr.ChtIndexer() == nil {
return false
}
headNum := self.CurrentHeader().Number.Uint64()
cht := GetTrustedCht(self.chainDb)
if headNum+1 < cht.Number*ChtFrequency {
num := cht.Number*ChtFrequency - 1
chtCount, _, _ := self.odr.ChtIndexer().Sections()
if headNum+1 < chtCount*ChtFrequency {
num := chtCount*ChtFrequency - 1
header, err := GetHeaderByNumber(ctx, self.odr, num)
if header != nil && err == nil {
self.mu.Lock()
......
light/nodeset.go 0 → 100644
View file @ ca376ead
// Copyright 2014 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 light
import (
"errors"
"sync"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
)
// NodeSet stores a set of trie nodes. It implements trie.Database and can also
// act as a cache for another trie.Database.
type NodeSet struct {
db map[string][]byte
dataSize int
lock sync.RWMutex
}
// NewNodeSet creates an empty node set
func NewNodeSet() *NodeSet {
return &NodeSet{
db: make(map[string][]byte),
}
}
// Put stores a new node in the set
func (db *NodeSet) Put(key []byte, value []byte) error {
db.lock.Lock()
defer db.lock.Unlock()
if _, ok := db.db[string(key)]; !ok {
db.db[string(key)] = common.CopyBytes(value)
db.dataSize += len(value)
}
return nil
}
// Get returns a stored node
func (db *NodeSet) Get(key []byte) ([]byte, error) {
db.lock.RLock()
defer db.lock.RUnlock()
if entry, ok := db.db[string(key)]; ok {
return entry, nil
}
return nil, errors.New("not found")
}
// Has returns true if the node set contains the given key
func (db *NodeSet) Has(key []byte) (bool, error) {
_, err := db.Get(key)
return err == nil, nil
}
// KeyCount returns the number of nodes in the set
func (db *NodeSet) KeyCount() int {
db.lock.RLock()
defer db.lock.RUnlock()
return len(db.db)
}
// DataSize returns the aggregated data size of nodes in the set
func (db *NodeSet) DataSize() int {
db.lock.RLock()
defer db.lock.RUnlock()
return db.dataSize
}
// NodeList converts the node set to a NodeList
func (db *NodeSet) NodeList() NodeList {
db.lock.RLock()
defer db.lock.RUnlock()
var values NodeList
for _, value := range db.db {
values = append(values, value)
}
return values
}
// Store writes the contents of the set to the given database
func (db *NodeSet) Store(target trie.Database) {
db.lock.RLock()
defer db.lock.RUnlock()
for key, value := range db.db {
target.Put([]byte(key), value)
}
}
// NodeList stores an ordered list of trie nodes. It implements trie.DatabaseWriter.
type NodeList []rlp.RawValue
// Store writes the contents of the list to the given database
func (n NodeList) Store(db trie.Database) {
for _, node := range n {
db.Put(crypto.Keccak256(node), node)
}
}
// NodeSet converts the node list to a NodeSet
func (n NodeList) NodeSet() *NodeSet {
db := NewNodeSet()
n.Store(db)
return db
}
// Put stores a new node at the end of the list
func (n *NodeList) Put(key []byte, value []byte) error {
*n = append(*n, value)
return nil
}
// DataSize returns the aggregated data size of nodes in the list
func (n NodeList) DataSize() int {
var size int
for _, node := range n {
size += len(node)
}
return size
}
light/odr.go
View file @ ca376ead
......@@ -25,9 +25,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
)
// NoOdr is the default context passed to an ODR capable function when the ODR
......@@ -37,6 +35,9 @@ var NoOdr = context.Background()
// OdrBackend is an interface to a backend service that handles ODR retrievals type
type OdrBackend interface {
Database() ethdb.Database
ChtIndexer() *core.ChainIndexer
BloomTrieIndexer() *core.ChainIndexer
BloomIndexer() *core.ChainIndexer
Retrieve(ctx context.Context, req OdrRequest) error
}
......@@ -80,23 +81,12 @@ type TrieRequest struct {
OdrRequest
Id *TrieID
Key []byte
Proof []rlp.RawValue
Proof *NodeSet
}
// StoreResult stores the retrieved data in local database
func (req *TrieRequest) StoreResult(db ethdb.Database) {
storeProof(db, req.Proof)
}
// storeProof stores the new trie nodes obtained from a merkle proof in the database
func storeProof(db ethdb.Database, proof []rlp.RawValue) {
for _, buf := range proof {
hash := crypto.Keccak256(buf)
val, _ := db.Get(hash)
if val == nil {
db.Put(hash, buf)
}
}
req.Proof.Store(db)
}
// CodeRequest is the ODR request type for retrieving contract code
......@@ -138,14 +128,14 @@ func (req *ReceiptsRequest) StoreResult(db ethdb.Database) {
core.WriteBlockReceipts(db, req.Hash, req.Number, req.Receipts)
}
// TrieRequest is the ODR request type for state/storage trie entries
// ChtRequest is the ODR request type for state/storage trie entries
type ChtRequest struct {
OdrRequest
ChtNum, BlockNum uint64
ChtRoot common.Hash
Header *types.Header
Td *big.Int
Proof []rlp.RawValue
Proof *NodeSet
}
// StoreResult stores the retrieved data in local database
......@@ -155,5 +145,27 @@ func (req *ChtRequest) StoreResult(db ethdb.Database) {
hash, num := req.Header.Hash(), req.Header.Number.Uint64()
core.WriteTd(db, hash, num, req.Td)
core.WriteCanonicalHash(db, hash, num)
//storeProof(db, req.Proof)
}
// BloomRequest is the ODR request type for retrieving bloom filters from a CHT structure
type BloomRequest struct {
OdrRequest
BloomTrieNum uint64
BitIdx uint
SectionIdxList []uint64
BloomTrieRoot common.Hash
BloomBits [][]byte
Proofs *NodeSet
}
// StoreResult stores the retrieved data in local database
func (req *BloomRequest) StoreResult(db ethdb.Database) {
for i, sectionIdx := range req.SectionIdxList {
sectionHead := core.GetCanonicalHash(db, (sectionIdx+1)*BloomTrieFrequency-1)
// if we don't have the canonical hash stored for this section head number, we'll still store it under
// a key with a zero sectionHead. GetBloomBits will look there too if we still don't have the canonical
// hash. In the unlikely case we've retrieved the section head hash since then, we'll just retrieve the
// bit vector again from the network.
core.WriteBloomBits(db, req.BitIdx, sectionIdx, sectionHead, req.BloomBits[i])
}
}
light/odr_test.go
View file @ ca376ead
......@@ -77,7 +77,9 @@ func (odr *testOdr) Retrieve(ctx context.Context, req OdrRequest) error {
req.Receipts = core.GetBlockReceipts(odr.sdb, req.Hash, core.GetBlockNumber(odr.sdb, req.Hash))
case *TrieRequest:
t, _ := trie.New(req.Id.Root, odr.sdb)
req.Proof = t.Prove(req.Key)
nodes := NewNodeSet()
t.Prove(req.Key, 0, nodes)
req.Proof = nodes
case *CodeRequest:
req.Data, _ = odr.sdb.Get(req.Hash[:])
}
......
light/odr_util.go
View file @ ca376ead
......@@ -19,56 +19,16 @@ package light
import (
"bytes"
"context"
"errors"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
)
var sha3_nil = crypto.Keccak256Hash(nil)
var (
ErrNoTrustedCht = errors.New("No trusted canonical hash trie")
ErrNoHeader = errors.New("Header not found")
ChtFrequency = uint64(4096)
ChtConfirmations = uint64(2048)
trustedChtKey = []byte("TrustedCHT")
)
type ChtNode struct {
Hash common.Hash
Td *big.Int
}
type TrustedCht struct {
Number uint64
Root common.Hash
}
func GetTrustedCht(db ethdb.Database) TrustedCht {
data, _ := db.Get(trustedChtKey)
var res TrustedCht
if err := rlp.DecodeBytes(data, &res); err != nil {
return TrustedCht{0, common.Hash{}}
}
return res
}
func WriteTrustedCht(db ethdb.Database, cht TrustedCht) {
data, _ := rlp.EncodeToBytes(cht)
db.Put(trustedChtKey, data)
}
func DeleteTrustedCht(db ethdb.Database) {
db.Delete(trustedChtKey)
}
func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*types.Header, error) {
db := odr.Database()
hash := core.GetCanonicalHash(db, number)
......@@ -81,12 +41,29 @@ func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*typ
return header, nil
}
cht := GetTrustedCht(db)
if number >= cht.Number*ChtFrequency {
var (
chtCount, sectionHeadNum uint64
sectionHead common.Hash
)
if odr.ChtIndexer() != nil {
chtCount, sectionHeadNum, sectionHead = odr.ChtIndexer().Sections()
canonicalHash := core.GetCanonicalHash(db, sectionHeadNum)
// if the CHT was injected as a trusted checkpoint, we have no canonical hash yet so we accept zero hash too
for chtCount > 0 && canonicalHash != sectionHead && canonicalHash != (common.Hash{}) {
chtCount--
if chtCount > 0 {
sectionHeadNum = chtCount*ChtFrequency - 1
sectionHead = odr.ChtIndexer().SectionHead(chtCount - 1)
canonicalHash = core.GetCanonicalHash(db, sectionHeadNum)
}
}
}
if number >= chtCount*ChtFrequency {
return nil, ErrNoTrustedCht
}
r := &ChtRequest{ChtRoot: cht.Root, ChtNum: cht.Number, BlockNum: number}
r := &ChtRequest{ChtRoot: GetChtRoot(db, chtCount-1, sectionHead), ChtNum: chtCount - 1, BlockNum: number}
if err := odr.Retrieve(ctx, r); err != nil {
return nil, err
} else {
......@@ -162,3 +139,61 @@ func GetBlockReceipts(ctx context.Context, odr OdrBackend, hash common.Hash, num
}
return r.Receipts, nil
}
// GetBloomBits retrieves a batch of compressed bloomBits vectors belonging to the given bit index and section indexes
func GetBloomBits(ctx context.Context, odr OdrBackend, bitIdx uint, sectionIdxList []uint64) ([][]byte, error) {
db := odr.Database()
result := make([][]byte, len(sectionIdxList))
var (
reqList []uint64
reqIdx []int
)
var (
bloomTrieCount, sectionHeadNum uint64
sectionHead common.Hash
)
if odr.BloomTrieIndexer() != nil {
bloomTrieCount, sectionHeadNum, sectionHead = odr.BloomTrieIndexer().Sections()
canonicalHash := core.GetCanonicalHash(db, sectionHeadNum)
// if the BloomTrie was injected as a trusted checkpoint, we have no canonical hash yet so we accept zero hash too
for bloomTrieCount > 0 && canonicalHash != sectionHead && canonicalHash != (common.Hash{}) {
bloomTrieCount--
if bloomTrieCount > 0 {
sectionHeadNum = bloomTrieCount*BloomTrieFrequency - 1
sectionHead = odr.BloomTrieIndexer().SectionHead(bloomTrieCount - 1)
canonicalHash = core.GetCanonicalHash(db, sectionHeadNum)
}
}
}
for i, sectionIdx := range sectionIdxList {
sectionHead := core.GetCanonicalHash(db, (sectionIdx+1)*BloomTrieFrequency-1)
// if we don't have the canonical hash stored for this section head number, we'll still look for
// an entry with a zero sectionHead (we store it with zero section head too if we don't know it
// at the time of the retrieval)
bloomBits, err := core.GetBloomBits(db, bitIdx, sectionIdx, sectionHead)
if err == nil {
result[i] = bloomBits
} else {
if sectionIdx >= bloomTrieCount {
return nil, ErrNoTrustedBloomTrie
}
reqList = append(reqList, sectionIdx)
reqIdx = append(reqIdx, i)
}
}
if reqList == nil {
return result, nil
}
r := &BloomRequest{BloomTrieRoot: GetBloomTrieRoot(db, bloomTrieCount-1, sectionHead), BloomTrieNum: bloomTrieCount - 1, BitIdx: bitIdx, SectionIdxList: reqList}
if err := odr.Retrieve(ctx, r); err != nil {
return nil, err
} else {
for i, idx := range reqIdx {
result[idx] = r.BloomBits[i]
}
return result, nil
}
}
light/postprocess.go 0 → 100644
View file @ ca376ead
This diff is collapsed.
trie/proof.go
View file @ ca376ead
......@@ -18,11 +18,10 @@ package trie
import (
"bytes"
"errors"
"fmt"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto/sha3"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rlp"
)
......@@ -36,7 +35,7 @@ import (
// contains all nodes of the longest existing prefix of the key
// (at least the root node), ending with the node that proves the
// absence of the key.
func (t *Trie) Prove(key []byte) []rlp.RawValue {
func (t *Trie) Prove(key []byte, fromLevel uint, proofDb DatabaseWriter) error {
// Collect all nodes on the path to key.
key = keybytesToHex(key)
nodes := []node{}
......@@ -61,67 +60,63 @@ func (t *Trie) Prove(key []byte) []rlp.RawValue {
tn, err = t.resolveHash(n, nil)
if err != nil {
log.Error(fmt.Sprintf("Unhandled trie error: %v", err))
return nil
return err
}
default:
panic(fmt.Sprintf("%T: invalid node: %v", tn, tn))
}
}
hasher := newHasher(0, 0)
proof := make([]rlp.RawValue, 0, len(nodes))
for i, n := range nodes {
// Don't bother checking for errors here since hasher panics
// if encoding doesn't work and we're not writing to any database.
n, _, _ = hasher.hashChildren(n, nil)
hn, _ := hasher.store(n, nil, false)
if _, ok := hn.(hashNode); ok || i == 0 {
if hash, ok := hn.(hashNode); ok || i == 0 {
// If the node's database encoding is a hash (or is the
// root node), it becomes a proof element.
enc, _ := rlp.EncodeToBytes(n)
proof = append(proof, enc)
if fromLevel > 0 {
fromLevel--
} else {
enc, _ := rlp.EncodeToBytes(n)
if !ok {
hash = crypto.Keccak256(enc)
}
proofDb.Put(hash, enc)
}
}
}
return proof
return nil
}
// VerifyProof checks merkle proofs. The given proof must contain the
// value for key in a trie with the given root hash. VerifyProof
// returns an error if the proof contains invalid trie nodes or the
// wrong value.
func VerifyProof(rootHash common.Hash, key []byte, proof []rlp.RawValue) (value []byte, err error) {
func VerifyProof(rootHash common.Hash, key []byte, proofDb DatabaseReader) (value []byte, err error, nodes int) {
key = keybytesToHex(key)
sha := sha3.NewKeccak256()
wantHash := rootHash.Bytes()
for i, buf := range proof {
sha.Reset()
sha.Write(buf)
if !bytes.Equal(sha.Sum(nil), wantHash) {
return nil, fmt.Errorf("bad proof node %d: hash mismatch", i)
wantHash := rootHash[:]
for i := 0; ; i++ {
buf, _ := proofDb.Get(wantHash)
if buf == nil {
return nil, fmt.Errorf("proof node %d (hash %064x) missing", i, wantHash[:]), i
}
n, err := decodeNode(wantHash, buf, 0)
if err != nil {
return nil, fmt.Errorf("bad proof node %d: %v", i, err)
return nil, fmt.Errorf("bad proof node %d: %v", i, err), i
}
keyrest, cld := get(n, key)
switch cld := cld.(type) {
case nil:
if i != len(proof)-1 {
return nil, fmt.Errorf("key mismatch at proof node %d", i)
} else {
// The trie doesn't contain the key.
return nil, nil
}
// The trie doesn't contain the key.
return nil, nil, i
case hashNode:
key = keyrest
wantHash = cld
case valueNode:
if i != len(proof)-1 {
return nil, errors.New("additional nodes at end of proof")
}
return cld, nil
return cld, nil, i + 1
}
}
return nil, errors.New("unexpected end of proof")
}
func get(tn node, key []byte) ([]byte, node) {
......
trie/proof_test.go
View file @ ca376ead
......@@ -24,7 +24,8 @@ import (
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
)
func init() {
......@@ -35,13 +36,13 @@ func TestProof(t *testing.T) {
trie, vals := randomTrie(500)
root := trie.Hash()
for _, kv := range vals {
proof := trie.Prove(kv.k)
if proof == nil {
proofs, _ := ethdb.NewMemDatabase()
if trie.Prove(kv.k, 0, proofs) != nil {
t.Fatalf("missing key %x while constructing proof", kv.k)
}
val, err := VerifyProof(root, kv.k, proof)
val, err, _ := VerifyProof(root, kv.k, proofs)
if err != nil {
t.Fatalf("VerifyProof error for key %x: %v\nraw proof: %x", kv.k, err, proof)
t.Fatalf("VerifyProof error for key %x: %v\nraw proof: %v", kv.k, err, proofs)
}
if !bytes.Equal(val, kv.v) {
t.Fatalf("VerifyProof returned wrong value for key %x: got %x, want %x", kv.k, val, kv.v)
......@@ -52,16 +53,14 @@ func TestProof(t *testing.T) {
func TestOneElementProof(t *testing.T) {
trie := new(Trie)
updateString(trie, "k", "v")
proof := trie.Prove([]byte("k"))
if proof == nil {
t.Fatal("nil proof")
}
if len(proof) != 1 {
proofs, _ := ethdb.NewMemDatabase()
trie.Prove([]byte("k"), 0, proofs)
if len(proofs.Keys()) != 1 {
t.Error("proof should have one element")
}
val, err := VerifyProof(trie.Hash(), []byte("k"), proof)
val, err, _ := VerifyProof(trie.Hash(), []byte("k"), proofs)
if err != nil {
t.Fatalf("VerifyProof error: %v\nraw proof: %x", err, proof)
t.Fatalf("VerifyProof error: %v\nproof hashes: %v", err, proofs.Keys())
}
if !bytes.Equal(val, []byte("v")) {
t.Fatalf("VerifyProof returned wrong value: got %x, want 'k'", val)
......@@ -72,12 +71,18 @@ func TestVerifyBadProof(t *testing.T) {
trie, vals := randomTrie(800)
root := trie.Hash()
for _, kv := range vals {
proof := trie.Prove(kv.k)
if proof == nil {
t.Fatal("nil proof")
proofs, _ := ethdb.NewMemDatabase()
trie.Prove(kv.k, 0, proofs)
if len(proofs.Keys()) == 0 {
t.Fatal("zero length proof")
}
mutateByte(proof[mrand.Intn(len(proof))])
if _, err := VerifyProof(root, kv.k, proof); err == nil {
keys := proofs.Keys()
key := keys[mrand.Intn(len(keys))]
node, _ := proofs.Get(key)
proofs.Delete(key)
mutateByte(node)
proofs.Put(crypto.Keccak256(node), node)
if _, err, _ := VerifyProof(root, kv.k, proofs); err == nil {
t.Fatalf("expected proof to fail for key %x", kv.k)
}
}
......@@ -104,8 +109,9 @@ func BenchmarkProve(b *testing.B) {
b.ResetTimer()
for i := 0; i < b.N; i++ {
kv := vals[keys[i%len(keys)]]
if trie.Prove(kv.k) == nil {
b.Fatalf("nil proof for %x", kv.k)
proofs, _ := ethdb.NewMemDatabase()
if trie.Prove(kv.k, 0, proofs); len(proofs.Keys()) == 0 {
b.Fatalf("zero length proof for %x", kv.k)
}
}
}
......@@ -114,16 +120,18 @@ func BenchmarkVerifyProof(b *testing.B) {
trie, vals := randomTrie(100)
root := trie.Hash()
var keys []string
var proofs [][]rlp.RawValue
var proofs []*ethdb.MemDatabase
for k := range vals {
keys = append(keys, k)
proofs = append(proofs, trie.Prove([]byte(k)))
proof, _ := ethdb.NewMemDatabase()
trie.Prove([]byte(k), 0, proof)
proofs = append(proofs, proof)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
im := i % len(keys)
if _, err := VerifyProof(root, []byte(keys[im]), proofs[im]); err != nil {
if _, err, _ := VerifyProof(root, []byte(keys[im]), proofs[im]); err != nil {
b.Fatalf("key %x: %v", keys[im], err)
}
}
......
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