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kick of bad peers

This commit is contained in:
obscuren 2014-10-07 11:18:46 +02:00
parent 677836cbee
commit 0015ce1e35
5 changed files with 55 additions and 78 deletions
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90
block_pool.go
View File

@ -3,6 +3,7 @@ package eth
import (
"bytes"
"container/list"
"fmt"
"math"
"math/big"
"sync"
@ -29,8 +30,8 @@ type BlockPool struct {
eth *Ethereum
hashPool [][]byte
pool map[string]*block
hashes [][]byte
pool map[string]*block
td *big.Int
quit chan bool
@ -53,12 +54,12 @@ func NewBlockPool(eth *Ethereum) *BlockPool {
}
func (self *BlockPool) Len() int {
return len(self.hashPool)
return len(self.hashes)
}
func (self *BlockPool) Reset() {
self.pool = make(map[string]*block)
self.hashPool = nil
self.hashes = nil
}
func (self *BlockPool) HasLatestHash() bool {
@ -88,6 +89,10 @@ func (self *BlockPool) FetchHashes(peer *Peer) bool {
if (self.peer == nil && peer.td.Cmp(highestTd) >= 0) || (self.peer != nil && peer.td.Cmp(self.peer.td) >= 0) || self.peer == peer {
if self.peer != peer {
poollogger.Debugf("Found better suitable peer (%v vs %v)\n", self.td, peer.td)
if self.peer != nil {
self.peer.doneFetchingHashes = true
}
}
self.peer = peer
@ -114,7 +119,7 @@ func (self *BlockPool) AddHash(hash []byte, peer *Peer) {
if self.pool[string(hash)] == nil {
self.pool[string(hash)] = &block{peer, nil, nil, time.Now(), 0}
self.hashPool = append([][]byte{hash}, self.hashPool...)
self.hashes = append([][]byte{hash}, self.hashes...)
}
}
@ -127,9 +132,12 @@ func (self *BlockPool) Add(b *ethchain.Block, peer *Peer) {
if self.pool[hash] == nil && !self.eth.BlockChain().HasBlock(b.Hash()) {
poollogger.Infof("Got unrequested block (%x...)\n", hash[0:4])
self.hashPool = append(self.hashPool, b.Hash())
self.hashes = append(self.hashes, b.Hash())
self.pool[hash] = &block{peer, peer, b, time.Now(), 0}
fmt.Println("1.", !self.eth.BlockChain().HasBlock(b.PrevHash), ethutil.Bytes2Hex(b.Hash()[0:4]), ethutil.Bytes2Hex(b.PrevHash[0:4]))
fmt.Println("2.", self.pool[string(b.PrevHash)] == nil)
fmt.Println("3.", !self.fetchingHashes)
if !self.eth.BlockChain().HasBlock(b.PrevHash) && self.pool[string(b.PrevHash)] == nil && !self.fetchingHashes {
poollogger.Infof("Unknown chain, requesting (%x...)\n", b.PrevHash[0:4])
peer.QueueMessage(ethwire.NewMessage(ethwire.MsgGetBlockHashesTy, []interface{}{b.Hash(), uint32(256)}))
@ -145,28 +153,10 @@ func (self *BlockPool) Remove(hash []byte) {
self.mut.Lock()
defer self.mut.Unlock()
self.hashPool = ethutil.DeleteFromByteSlice(self.hashPool, hash)
self.hashes = ethutil.DeleteFromByteSlice(self.hashes, hash)
delete(self.pool, string(hash))
}
func (self *BlockPool) ProcessCanonical(f func(block *ethchain.Block)) (procAmount int) {
blocks := self.Blocks()
ethchain.BlockBy(ethchain.Number).Sort(blocks)
for _, block := range blocks {
if self.eth.BlockChain().HasBlock(block.PrevHash) {
procAmount++
f(block)
self.Remove(block.Hash())
}
}
return
}
func (self *BlockPool) DistributeHashes() {
self.mut.Lock()
defer self.mut.Unlock()
@ -178,8 +168,8 @@ func (self *BlockPool) DistributeHashes() {
)
num := int(math.Min(float64(amount), float64(len(self.pool))))
for i, j := 0, 0; i < len(self.hashPool) && j < num; i++ {
hash := self.hashPool[i]
for i, j := 0, 0; i < len(self.hashes) && j < num; i++ {
hash := self.hashes[i]
item := self.pool[string(hash)]
if item != nil && item.block == nil {
@ -193,7 +183,7 @@ func (self *BlockPool) DistributeHashes() {
peer = item.from
} else {
// Remove it
self.hashPool = ethutil.DeleteFromByteSlice(self.hashPool, hash)
self.hashes = ethutil.DeleteFromByteSlice(self.hashes, hash)
delete(self.pool, string(hash))
}
} else if lastFetchFailed || item.peer == nil {
@ -250,17 +240,31 @@ out:
}
})
self.DistributeHashes()
if self.ChainLength < len(self.hashPool) {
self.ChainLength = len(self.hashPool)
if len(self.hashes) > 0 {
self.DistributeHashes()
}
if self.ChainLength < len(self.hashes) {
self.ChainLength = len(self.hashes)
}
/*
if !self.fetchingHashes {
blocks := self.Blocks()
ethchain.BlockBy(ethchain.Number).Sort(blocks)
if len(blocks) > 0 {
if !self.eth.BlockChain().HasBlock(b.PrevHash) && self.pool[string(b.PrevHash)] == nil && !self.fetchingHashes {
}
}
}
*/
}
}
}
func (self *BlockPool) chainThread() {
procTimer := time.NewTicker(1000 * time.Millisecond)
procTimer := time.NewTicker(500 * time.Millisecond)
out:
for {
select {
@ -294,14 +298,8 @@ out:
}
}
if len(blocks) > 0 {
self.eth.Eventer().Post("blocks", blocks)
}
var err error
for i, block := range blocks {
//self.eth.Eventer().Post("block", block)
err = self.eth.StateManager().Process(block, false)
if err != nil {
poollogger.Infoln(err)
@ -318,10 +316,6 @@ out:
if err != nil {
self.Reset()
// Remove this bad chain
for _, block := range blocks {
self.Remove(block.Hash())
}
poollogger.Debugf("Punishing peer for supplying bad chain (%v)\n", self.peer.conn.RemoteAddr())
// This peer gave us bad hashes and made us fetch a bad chain, therefor he shall be punished.
@ -330,16 +324,6 @@ out:
self.td = ethutil.Big0
self.peer = nil
}
/*
// Handle in batches of 4k
//max := int(math.Min(4000, float64(len(blocks))))
for _, block := range blocks {
self.eth.Eventer().Post("block", block)
self.Remove(block.Hash())
}
*/
}
}
}

2
ethchain/filter.go
View File

@ -216,7 +216,7 @@ func (self *Filter) bloomFilter(block *Block) bool {
fk := append([]byte("bloom"), block.Hash()...)
bin, err := self.eth.Db().Get(fk)
if err != nil {
panic(err)
fmt.Println(err)
}
bloom := NewBloomFilter(bin)

4
ethpipe/js_types.go
View File

@ -33,9 +33,9 @@ func NewJSBlock(block *ethchain.Block) *JSBlock {
return &JSBlock{}
}
var ptxs []JSTransaction
var ptxs []*JSTransaction
for _, tx := range block.Transactions() {
ptxs = append(ptxs, *NewJSTx(tx, block.State()))
ptxs = append(ptxs, NewJSTx(tx, block.State()))
}
list := ethutil.NewList(ptxs)

11
ethutil/list.go
View File

@ -3,12 +3,14 @@ package ethutil
import (
"encoding/json"
"reflect"
"sync"
)
// The list type is an anonymous slice handler which can be used
// for containing any slice type to use in an environment which
// does not support slice types (e.g., JavaScript, QML)
type List struct {
mut sync.Mutex
val interface{}
list reflect.Value
Length int
@ -21,7 +23,7 @@ func NewList(t interface{}) *List {
panic("list container initialized with a non-slice type")
}
return &List{t, list, list.Len()}
return &List{sync.Mutex{}, t, list, list.Len()}
}
func EmptyList() *List {
@ -30,8 +32,10 @@ func EmptyList() *List {
// Get N element from the embedded slice. Returns nil if OOB.
func (self *List) Get(i int) interface{} {
if self.list.Len() > i {
self.mut.Lock()
defer self.mut.Unlock()
i := self.list.Index(i).Interface()
return i
@ -51,6 +55,9 @@ func (self *List) GetAsJson(i int) interface{} {
// Appends value at the end of the slice. Panics when incompatible value
// is given.
func (self *List) Append(v interface{}) {
self.mut.Lock()
defer self.mut.Unlock()
self.list = reflect.Append(self.list, reflect.ValueOf(v))
self.Length = self.list.Len()
}

26
peer.go
View File

@ -516,10 +516,11 @@ func (p *Peer) HandleInbound() {
blockPool.AddHash(hash, p)
}
if !foundCommonHash && msg.Data.Len() != 0 {
if !p.FetchHashes() {
p.doneFetchingHashes = true
}
if !foundCommonHash {
//if !p.FetchHashes() {
// p.doneFetchingHashes = true
//}
p.FetchHashes()
} else {
peerlogger.Infof("Found common hash (%x...)\n", p.lastReceivedHash[0:4])
p.doneFetchingHashes = true
@ -533,8 +534,6 @@ func (p *Peer) HandleInbound() {
it := msg.Data.NewIterator()
for it.Next() {
block := ethchain.NewBlockFromRlpValue(it.Value())
//fmt.Printf("%v %x - %x\n", block.Number, block.Hash()[0:4], block.PrevHash[0:4])
blockPool.Add(block, p)
p.lastBlockReceived = time.Now()
@ -557,21 +556,8 @@ func (self *Peer) FetchBlocks(hashes [][]byte) {
func (self *Peer) FetchHashes() bool {
blockPool := self.ethereum.blockPool
return blockPool.FetchHashes(self)
/*
if self.td.Cmp(self.ethereum.HighestTDPeer()) >= 0 {
blockPool.td = self.td
if !blockPool.HasLatestHash() {
self.doneFetchingHashes = false
const amount = 256
peerlogger.Debugf("Fetching hashes (%d)\n", amount)
self.QueueMessage(ethwire.NewMessage(ethwire.MsgGetBlockHashesTy, []interface{}{self.lastReceivedHash, uint32(amount)}))
}
}
*/
}
func (self *Peer) FetchingHashes() bool {