Skip to content

G
Geth-Modification
Commit 7d02c4fd authored by zelig's avatar zelig
Browse files
Options

remove old ethereum/p2p related top level files

parent d9b16c11
Expand all Hide whitespace changes
Inline Side-by-side
Showing with 0 additions and 2307 deletions
block_pool.go deleted 100644 → 0
View file @ d9b16c11
package eth
import (
"bytes"
"container/list"
"fmt"
"math"
"math/big"
"sync"
"time"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/wire"
)
var poollogger = logger.NewLogger("BPOOL")
type block struct {
from *Peer
peer *Peer
block *types.Block
reqAt time.Time
requested int
}
type BlockPool struct {
mut sync.Mutex
eth *Ethereum
hashes [][]byte
pool map[string]*block
td *big.Int
quit chan bool
fetchingHashes bool
downloadStartedAt time.Time
ChainLength, BlocksProcessed int
peer *Peer
}
func NewBlockPool(eth *Ethereum) *BlockPool {
return &BlockPool{
eth: eth,
pool: make(map[string]*block),
td: ethutil.Big0,
quit: make(chan bool),
}
}
func (self *BlockPool) Len() int {
return len(self.hashes)
}
func (self *BlockPool) Reset() {
self.pool = make(map[string]*block)
self.hashes = nil
}
func (self *BlockPool) HasLatestHash() bool {
self.mut.Lock()
defer self.mut.Unlock()
return self.pool[string(self.eth.ChainManager().CurrentBlock.Hash())] != nil
}
func (self *BlockPool) HasCommonHash(hash []byte) bool {
return self.eth.ChainManager().GetBlock(hash) != nil
}
func (self *BlockPool) Blocks() (blocks types.Blocks) {
for _, item := range self.pool {
if item.block != nil {
blocks = append(blocks, item.block)
}
}
return
}
func (self *BlockPool) FetchHashes(peer *Peer) bool {
highestTd := self.eth.HighestTDPeer()
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.Infof("Found better suitable peer (%v vs %v)\n", self.td, peer.td)
if self.peer != nil {
self.peer.doneFetchingHashes = true
}
}
self.peer = peer
self.td = peer.td
if !self.HasLatestHash() {
self.fetchHashes()
}
return true
}
return false
}
func (self *BlockPool) fetchHashes() {
peer := self.peer
peer.doneFetchingHashes = false
const amount = 256
peerlogger.Debugf("Fetching hashes (%d) %x...\n", amount, peer.lastReceivedHash[0:4])
peer.QueueMessage(wire.NewMessage(wire.MsgGetBlockHashesTy, []interface{}{peer.lastReceivedHash, uint32(amount)}))
}
func (self *BlockPool) AddHash(hash []byte, peer *Peer) {
self.mut.Lock()
defer self.mut.Unlock()
if self.pool[string(hash)] == nil {
self.pool[string(hash)] = &block{peer, nil, nil, time.Now(), 0}
self.hashes = append([][]byte{hash}, self.hashes...)
}
}
func (self *BlockPool) Add(b *types.Block, peer *Peer) {
self.addBlock(b, peer, false)
}
func (self *BlockPool) AddNew(b *types.Block, peer *Peer) {
self.addBlock(b, peer, true)
}
func (self *BlockPool) addBlock(b *types.Block, peer *Peer, newBlock bool) {
self.mut.Lock()
defer self.mut.Unlock()
hash := string(b.Hash())
if self.pool[hash] == nil && !self.eth.ChainManager().HasBlock(b.Hash()) {
poollogger.Infof("Got unrequested block (%x...)\n", hash[0:4])
self.hashes = append(self.hashes, b.Hash())
self.pool[hash] = &block{peer, peer, b, time.Now(), 0}
// The following is only performed on an unrequested new block
if newBlock {
fmt.Println("1.", !self.eth.ChainManager().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.ChainManager().HasBlock(b.PrevHash) /*&& self.pool[string(b.PrevHash)] == nil*/ && !self.fetchingHashes {
poollogger.Infof("Unknown chain, requesting (%x...)\n", b.PrevHash[0:4])
peer.QueueMessage(wire.NewMessage(wire.MsgGetBlockHashesTy, []interface{}{b.Hash(), uint32(256)}))
}
}
} else if self.pool[hash] != nil {
self.pool[hash].block = b
}
self.BlocksProcessed++
}
func (self *BlockPool) Remove(hash []byte) {
self.mut.Lock()
defer self.mut.Unlock()
self.hashes = ethutil.DeleteFromByteSlice(self.hashes, hash)
delete(self.pool, string(hash))
}
func (self *BlockPool) DistributeHashes() {
self.mut.Lock()
defer self.mut.Unlock()
var (
peerLen = self.eth.peers.Len()
amount = 256 * peerLen
dist = make(map[*Peer][][]byte)
)
num := int(math.Min(float64(amount), float64(len(self.pool))))
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 {
var peer *Peer
lastFetchFailed := time.Since(item.reqAt) > 5*time.Second
// Handle failed requests
if lastFetchFailed && item.requested > 5 && item.peer != nil {
if item.requested < 100 {
// Select peer the hash was retrieved off
peer = item.from
} else {
// Remove it
self.hashes = ethutil.DeleteFromByteSlice(self.hashes, hash)
delete(self.pool, string(hash))
}
} else if lastFetchFailed || item.peer == nil {
// Find a suitable, available peer
eachPeer(self.eth.peers, func(p *Peer, v *list.Element) {
if peer == nil && len(dist[p]) < amount/peerLen && p.statusKnown {
peer = p
}
})
}
if peer != nil {
item.reqAt = time.Now()
item.peer = peer
item.requested++
dist[peer] = append(dist[peer], hash)
}
}
}
for peer, hashes := range dist {
peer.FetchBlocks(hashes)
}
if len(dist) > 0 {
self.downloadStartedAt = time.Now()
}
}
func (self *BlockPool) Start() {
go self.downloadThread()
go self.chainThread()
}
func (self *BlockPool) Stop() {
close(self.quit)
}
func (self *BlockPool) downloadThread() {
serviceTimer := time.NewTicker(100 * time.Millisecond)
out:
for {
select {
case <-self.quit:
break out
case <-serviceTimer.C:
// Check if we're catching up. If not distribute the hashes to
// the peers and download the blockchain
self.fetchingHashes = false
eachPeer(self.eth.peers, func(p *Peer, v *list.Element) {
if p.statusKnown && p.FetchingHashes() {
self.fetchingHashes = true
}
})
if len(self.hashes) > 0 {
self.DistributeHashes()
}
if self.ChainLength < len(self.hashes) {
self.ChainLength = len(self.hashes)
}
if self.peer != nil &&
!self.peer.doneFetchingHashes &&
time.Since(self.peer.lastHashAt) > 10*time.Second &&
time.Since(self.peer.lastHashRequestedAt) > 5*time.Second {
self.fetchHashes()
}
/*
if !self.fetchingHashes {
blocks := self.Blocks()
chain.BlockBy(chain.Number).Sort(blocks)
if len(blocks) > 0 {
if !self.eth.ChainManager().HasBlock(b.PrevHash) && self.pool[string(b.PrevHash)] == nil && !self.fetchingHashes {
}
}
}
*/
}
}
}
func (self *BlockPool) chainThread() {
procTimer := time.NewTicker(500 * time.Millisecond)
out:
for {
select {
case <-self.quit:
break out
case <-procTimer.C:
blocks := self.Blocks()
types.BlockBy(types.Number).Sort(blocks)
// Find common block
for i, block := range blocks {
if self.eth.ChainManager().HasBlock(block.PrevHash) {
blocks = blocks[i:]
break
}
}
if len(blocks) > 0 {
if self.eth.ChainManager().HasBlock(blocks[0].PrevHash) {
for i, block := range blocks[1:] {
// NOTE: The Ith element in this loop refers to the previous block in
// outer "blocks"
if bytes.Compare(block.PrevHash, blocks[i].Hash()) != 0 {
blocks = blocks[:i]
break
}
}
} else {
blocks = nil
}
}
if len(blocks) > 0 {
chainman := self.eth.ChainManager()
err := chainman.InsertChain(blocks)
if err != nil {
poollogger.Debugln(err)
self.Reset()
if self.peer != nil && self.peer.conn != nil {
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.
self.eth.BlacklistPeer(self.peer)
self.peer.StopWithReason(DiscBadPeer)
self.td = ethutil.Big0
self.peer = nil
}
for _, block := range blocks {
self.Remove(block.Hash())
}
}
}
}
}
ethereum 0 → 100755
View file @ 7d02c4fd
File added
ethereum.go deleted 100644 → 0
View file @ d9b16c11
This diff is collapsed.
events.go deleted 100644 → 0
View file @ d9b16c11
package eth
import "container/list"
type PeerListEvent struct {
Peers *list.List
}
type ChainSyncEvent struct {
InSync bool
}
nat.go deleted 100644 → 0
View file @ d9b16c11
package eth
import (
"net"
)
// protocol is either "udp" or "tcp"
type NAT interface {
GetExternalAddress() (addr net.IP, err error)
AddPortMapping(protocol string, externalPort, internalPort int, description string, timeout int) (mappedExternalPort int, err error)
DeletePortMapping(protocol string, externalPort, internalPort int) (err error)
}
natpmp.go deleted 100644 → 0
View file @ d9b16c11
package eth
import (
"fmt"
"net"
natpmp "github.com/jackpal/go-nat-pmp"
)
// Adapt the NAT-PMP protocol to the NAT interface
// TODO:
// + Register for changes to the external address.
// + Re-register port mapping when router reboots.
// + A mechanism for keeping a port mapping registered.
type natPMPClient struct {
client *natpmp.Client
}
func NewNatPMP(gateway net.IP) (nat NAT) {
return &natPMPClient{natpmp.NewClient(gateway)}
}
func (n *natPMPClient) GetExternalAddress() (addr net.IP, err error) {
response, err := n.client.GetExternalAddress()
if err != nil {
return
}
ip := response.ExternalIPAddress
addr = net.IPv4(ip[0], ip[1], ip[2], ip[3])
return
}
func (n *natPMPClient) AddPortMapping(protocol string, externalPort, internalPort int,
description string, timeout int) (mappedExternalPort int, err error) {
if timeout <= 0 {
err = fmt.Errorf("timeout must not be <= 0")
return
}
// Note order of port arguments is switched between our AddPortMapping and the client's AddPortMapping.
response, err := n.client.AddPortMapping(protocol, internalPort, externalPort, timeout)
if err != nil {
return
}
mappedExternalPort = int(response.MappedExternalPort)
return
}
func (n *natPMPClient) DeletePortMapping(protocol string, externalPort, internalPort int) (err error) {
// To destroy a mapping, send an add-port with
// an internalPort of the internal port to destroy, an external port of zero and a time of zero.
_, err = n.client.AddPortMapping(protocol, internalPort, 0, 0)
return
}
natupnp.go deleted 100644 → 0
View file @ d9b16c11
package eth
// Just enough UPnP to be able to forward ports
//
import (
"bytes"
"encoding/xml"
"errors"
"net"
"net/http"
"os"
"strconv"
"strings"
"time"
)
type upnpNAT struct {
serviceURL string
ourIP string
}
func Discover() (nat NAT, err error) {
ssdp, err := net.ResolveUDPAddr("udp4", "239.255.255.250:1900")
if err != nil {
return
}
conn, err := net.ListenPacket("udp4", ":0")
if err != nil {
return
}
socket := conn.(*net.UDPConn)
defer socket.Close()
err = socket.SetDeadline(time.Now().Add(10 * time.Second))
if err != nil {
return
}
st := "ST: urn:schemas-upnp-org:device:InternetGatewayDevice:1\r\n"
buf := bytes.NewBufferString(
"M-SEARCH * HTTP/1.1\r\n" +
"HOST: 239.255.255.250:1900\r\n" +
st +
"MAN: \"ssdp:discover\"\r\n" +
"MX: 2\r\n\r\n")
message := buf.Bytes()
answerBytes := make([]byte, 1024)
for i := 0; i < 3; i++ {
_, err = socket.WriteToUDP(message, ssdp)
if err != nil {
return
}
var n int
n, _, err = socket.ReadFromUDP(answerBytes)
if err != nil {
continue
// socket.Close()
// return
}
answer := string(answerBytes[0:n])
if strings.Index(answer, "\r\n"+st) < 0 {
continue
}
// HTTP header field names are case-insensitive.
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2
locString := "\r\nlocation: "
answer = strings.ToLower(answer)
locIndex := strings.Index(answer, locString)
if locIndex < 0 {
continue
}
loc := answer[locIndex+len(locString):]
endIndex := strings.Index(loc, "\r\n")
if endIndex < 0 {
continue
}
locURL := loc[0:endIndex]
var serviceURL string
serviceURL, err = getServiceURL(locURL)
if err != nil {
return
}
var ourIP string
ourIP, err = getOurIP()
if err != nil {
return
}
nat = &upnpNAT{serviceURL: serviceURL, ourIP: ourIP}
return
}
err = errors.New("UPnP port discovery failed.")
return
}
// service represents the Service type in an UPnP xml description.
// Only the parts we care about are present and thus the xml may have more
// fields than present in the structure.
type service struct {
ServiceType string `xml:"serviceType"`
ControlURL string `xml:"controlURL"`
}
// deviceList represents the deviceList type in an UPnP xml description.
// Only the parts we care about are present and thus the xml may have more
// fields than present in the structure.
type deviceList struct {
XMLName xml.Name `xml:"deviceList"`
Device []device `xml:"device"`
}
// serviceList represents the serviceList type in an UPnP xml description.
// Only the parts we care about are present and thus the xml may have more
// fields than present in the structure.
type serviceList struct {
XMLName xml.Name `xml:"serviceList"`
Service []service `xml:"service"`
}
// device represents the device type in an UPnP xml description.
// Only the parts we care about are present and thus the xml may have more
// fields than present in the structure.
type device struct {
XMLName xml.Name `xml:"device"`
DeviceType string `xml:"deviceType"`
DeviceList deviceList `xml:"deviceList"`
ServiceList serviceList `xml:"serviceList"`
}
// specVersion represents the specVersion in a UPnP xml description.
// Only the parts we care about are present and thus the xml may have more
// fields than present in the structure.
type specVersion struct {
XMLName xml.Name `xml:"specVersion"`
Major int `xml:"major"`
Minor int `xml:"minor"`
}
// root represents the Root document for a UPnP xml description.
// Only the parts we care about are present and thus the xml may have more
// fields than present in the structure.
type root struct {
XMLName xml.Name `xml:"root"`
SpecVersion specVersion
Device device
}
func getChildDevice(d *device, deviceType string) *device {
dl := d.DeviceList.Device
for i := 0; i < len(dl); i++ {
if dl[i].DeviceType == deviceType {
return &dl[i]
}
}
return nil
}
func getChildService(d *device, serviceType string) *service {
sl := d.ServiceList.Service
for i := 0; i < len(sl); i++ {
if sl[i].ServiceType == serviceType {
return &sl[i]
}
}
return nil
}
func getOurIP() (ip string, err error) {
hostname, err := os.Hostname()
if err != nil {
return
}
p, err := net.LookupIP(hostname)
if err != nil && len(p) > 0 {
return
}
return p[0].String(), nil
}
func getServiceURL(rootURL string) (url string, err error) {
r, err := http.Get(rootURL)
if err != nil {
return
}
defer r.Body.Close()
if r.StatusCode >= 400 {
err = errors.New(string(r.StatusCode))
return
}
var root root
err = xml.NewDecoder(r.Body).Decode(&root)
if err != nil {
return
}
a := &root.Device
if a.DeviceType != "urn:schemas-upnp-org:device:InternetGatewayDevice:1" {
err = errors.New("No InternetGatewayDevice")
return
}
b := getChildDevice(a, "urn:schemas-upnp-org:device:WANDevice:1")
if b == nil {
err = errors.New("No WANDevice")
return
}
c := getChildDevice(b, "urn:schemas-upnp-org:device:WANConnectionDevice:1")
if c == nil {
err = errors.New("No WANConnectionDevice")
return
}
d := getChildService(c, "urn:schemas-upnp-org:service:WANIPConnection:1")
if d == nil {
err = errors.New("No WANIPConnection")
return
}
url = combineURL(rootURL, d.ControlURL)
return
}
func combineURL(rootURL, subURL string) string {
protocolEnd := "://"
protoEndIndex := strings.Index(rootURL, protocolEnd)
a := rootURL[protoEndIndex+len(protocolEnd):]
rootIndex := strings.Index(a, "/")
return rootURL[0:protoEndIndex+len(protocolEnd)+rootIndex] + subURL
}
func soapRequest(url, function, message string) (r *http.Response, err error) {
fullMessage := "<?xml version=\"1.0\" ?>" +
"<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" s:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">\r\n" +
"<s:Body>" + message + "</s:Body></s:Envelope>"
req, err := http.NewRequest("POST", url, strings.NewReader(fullMessage))
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", "text/xml ; charset=\"utf-8\"")
req.Header.Set("User-Agent", "Darwin/10.0.0, UPnP/1.0, MiniUPnPc/1.3")
//req.Header.Set("Transfer-Encoding", "chunked")
req.Header.Set("SOAPAction", "\"urn:schemas-upnp-org:service:WANIPConnection:1#"+function+"\"")
req.Header.Set("Connection", "Close")
req.Header.Set("Cache-Control", "no-cache")
req.Header.Set("Pragma", "no-cache")
// log.Stderr("soapRequest ", req)
//fmt.Println(fullMessage)
r, err = http.DefaultClient.Do(req)
if err != nil {
return
}
if r.Body != nil {
defer r.Body.Close()
}
if r.StatusCode >= 400 {
// log.Stderr(function, r.StatusCode)
err = errors.New("Error " + strconv.Itoa(r.StatusCode) + " for " + function)
r = nil
return
}
return
}
type statusInfo struct {
externalIpAddress string
}
func (n *upnpNAT) getStatusInfo() (info statusInfo, err error) {
message := "<u:GetStatusInfo xmlns:u=\"urn:schemas-upnp-org:service:WANIPConnection:1\">\r\n" +
"</u:GetStatusInfo>"
var response *http.Response
response, err = soapRequest(n.serviceURL, "GetStatusInfo", message)
if err != nil {
return
}
// TODO: Write a soap reply parser. It has to eat the Body and envelope tags...
response.Body.Close()
return
}
func (n *upnpNAT) GetExternalAddress() (addr net.IP, err error) {
info, err := n.getStatusInfo()
if err != nil {
return
}
addr = net.ParseIP(info.externalIpAddress)
return
}
func (n *upnpNAT) AddPortMapping(protocol string, externalPort, internalPort int, description string, timeout int) (mappedExternalPort int, err error) {
// A single concatenation would break ARM compilation.
message := "<u:AddPortMapping xmlns:u=\"urn:schemas-upnp-org:service:WANIPConnection:1\">\r\n" +
"<NewRemoteHost></NewRemoteHost><NewExternalPort>" + strconv.Itoa(externalPort)
message += "</NewExternalPort><NewProtocol>" + protocol + "</NewProtocol>"
message += "<NewInternalPort>" + strconv.Itoa(internalPort) + "</NewInternalPort>" +
"<NewInternalClient>" + n.ourIP + "</NewInternalClient>" +
"<NewEnabled>1</NewEnabled><NewPortMappingDescription>"
message += description +
"</NewPortMappingDescription><NewLeaseDuration>" + strconv.Itoa(timeout) +
"</NewLeaseDuration></u:AddPortMapping>"
var response *http.Response
response, err = soapRequest(n.serviceURL, "AddPortMapping", message)
if err != nil {
return
}
// TODO: check response to see if the port was forwarded
// log.Println(message, response)
mappedExternalPort = externalPort
_ = response
return
}
func (n *upnpNAT) DeletePortMapping(protocol string, externalPort, internalPort int) (err error) {
message := "<u:DeletePortMapping xmlns:u=\"urn:schemas-upnp-org:service:WANIPConnection:1\">\r\n" +
"<NewRemoteHost></NewRemoteHost><NewExternalPort>" + strconv.Itoa(externalPort) +
"</NewExternalPort><NewProtocol>" + protocol + "</NewProtocol>" +
"</u:DeletePortMapping>"
var response *http.Response
response, err = soapRequest(n.serviceURL, "DeletePortMapping", message)
if err != nil {
return
}
// TODO: check response to see if the port was deleted
// log.Println(message, response)
_ = response
return
}
peer.go deleted 100644 → 0
View file @ d9b16c11
This diff is collapsed.
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment