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Merge pull request #239 from fjl/grab-bag

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Grab bag of fixes
This commit is contained in:
Jeffrey Wilcke 2015-01-06 13:13:16 +01:00
commit 3b8725e0f5
11 changed files with 116 additions and 93 deletions
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6
cmd/evm/main.go
View File

@ -131,6 +131,12 @@ func (self *VMEnv) Value() *big.Int { return self.value }
func (self *VMEnv) GasLimit() *big.Int { return big.NewInt(1000000000) }
func (self *VMEnv) Depth() int { return 0 }
func (self *VMEnv) SetDepth(i int) { self.depth = i }
func (self *VMEnv) GetHash(n uint64) []byte {
if self.block.Number().Cmp(big.NewInt(int64(n))) == 0 {
return self.block.Hash()
}
return nil
}
func (self *VMEnv) AddLog(log state.Log) {
self.state.AddLog(log)
}

34
cmd/peerserver/main.go
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@ -18,9 +18,8 @@ package main
import (
"crypto/elliptic"
"fmt"
"flag"
"log"
"net"
"os"
"github.com/ethereum/go-ethereum/crypto"
@ -28,29 +27,32 @@ import (
"github.com/ethereum/go-ethereum/p2p"
)
var (
natType = flag.String("nat", "", "NAT traversal implementation")
pmpGateway = flag.String("gateway", "", "gateway address for NAT-PMP")
listenAddr = flag.String("addr", ":30301", "listen address")
)
func main() {
flag.Parse()
nat, err := p2p.ParseNAT(*natType, *pmpGateway)
if err != nil {
log.Fatal("invalid nat:", err)
}
logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.InfoLevel))
key, _ := crypto.GenerateKey()
marshaled := elliptic.Marshal(crypto.S256(), key.PublicKey.X, key.PublicKey.Y)
srv := p2p.Server{
MaxPeers: 100,
Identity: p2p.NewSimpleClientIdentity("Ethereum(G)", "0.1", "Peer Server Two", string(marshaled)),
ListenAddr: ":30301",
NAT: p2p.UPNP(),
Identity: p2p.NewSimpleClientIdentity("Ethereum(G)", "0.1", "Peer Server Two", marshaled),
ListenAddr: *listenAddr,
NAT: nat,
NoDial: true,
}
if err := srv.Start(); err != nil {
fmt.Println("could not start server:", err)
os.Exit(1)
log.Fatal("could not start server:", err)
}
// add seed peers
seed, err := net.ResolveTCPAddr("tcp", "poc-8.ethdev.com:30303")
if err != nil {
fmt.Println("couldn't resolve:", err)
} else {
srv.SuggestPeer(seed.IP, seed.Port, nil)
}
select {}
}

3
cmd/rlpdump/main.go
View File

@ -110,8 +110,7 @@ func dump(s *rlp.Stream, depth int) error {
s.List()
defer s.ListEnd()
if size == 0 {
fmt.Printf(ws(depth) + "[]")
return nil
fmt.Print(ws(depth) + "[]")
} else {
fmt.Println(ws(depth) + "[")
for i := 0; ; i++ {

8
eth/protocol.go
View File

@ -140,7 +140,7 @@ func (self *ethProtocol) handle() error {
return self.protoError(ErrDecode, "->msg %v: %v", msg, err)
}
hashes := self.chainManager.GetBlockHashesFromHash(request.Hash, request.Amount)
return self.rw.EncodeMsg(BlockHashesMsg, ethutil.ByteSliceToInterface(hashes)...)
return p2p.EncodeMsg(self.rw, BlockHashesMsg, ethutil.ByteSliceToInterface(hashes)...)
case BlockHashesMsg:
// TODO: redo using lazy decode , this way very inefficient on known chains
@ -185,7 +185,7 @@ func (self *ethProtocol) handle() error {
break
}
}
return self.rw.EncodeMsg(BlocksMsg, blocks...)
return p2p.EncodeMsg(self.rw, BlocksMsg, blocks...)
case BlocksMsg:
msgStream := rlp.NewStream(msg.Payload)
@ -298,12 +298,12 @@ func (self *ethProtocol) handleStatus() error {
func (self *ethProtocol) requestBlockHashes(from []byte) error {
self.peer.Debugf("fetching hashes (%d) %x...\n", blockHashesBatchSize, from[0:4])
return self.rw.EncodeMsg(GetBlockHashesMsg, interface{}(from), uint64(blockHashesBatchSize))
return p2p.EncodeMsg(self.rw, GetBlockHashesMsg, interface{}(from), uint64(blockHashesBatchSize))
}
func (self *ethProtocol) requestBlocks(hashes [][]byte) error {
self.peer.Debugf("fetching %v blocks", len(hashes))
return self.rw.EncodeMsg(GetBlocksMsg, ethutil.ByteSliceToInterface(hashes)...)
return p2p.EncodeMsg(self.rw, GetBlocksMsg, ethutil.ByteSliceToInterface(hashes)...)
}
func (self *ethProtocol) protoError(code int, format string, params ...interface{}) (err *protocolError) {

4
eth/protocol_test.go
View File

@ -41,10 +41,6 @@ func (self *testMsgReadWriter) WriteMsg(msg p2p.Msg) error {
return nil
}
func (self *testMsgReadWriter) EncodeMsg(code uint64, data ...interface{}) error {
return self.WriteMsg(p2p.NewMsg(code, data...))
}
func (self *testMsgReadWriter) ReadMsg() (p2p.Msg, error) {
msg, ok := <-self.in
if !ok {

20
p2p/message.go
View File

@ -71,14 +71,11 @@ type MsgReader interface {
}
type MsgWriter interface {
// WriteMsg sends an existing message.
// The Payload reader of the message is consumed.
// WriteMsg sends a message. It will block until the message's
// Payload has been consumed by the other end.
//
// Note that messages can be sent only once.
WriteMsg(Msg) error
// EncodeMsg writes an RLP-encoded message with the given
// code and data elements.
EncodeMsg(code uint64, data ...interface{}) error
}
// MsgReadWriter provides reading and writing of encoded messages.
@ -87,6 +84,12 @@ type MsgReadWriter interface {
MsgWriter
}
// EncodeMsg writes an RLP-encoded message with the given code and
// data elements.
func EncodeMsg(w MsgWriter, code uint64, data ...interface{}) error {
return w.WriteMsg(NewMsg(code, data...))
}
var magicToken = []byte{34, 64, 8, 145}
func writeMsg(w io.Writer, msg Msg) error {
@ -209,11 +212,6 @@ func (p *MsgPipeRW) WriteMsg(msg Msg) error {
return ErrPipeClosed
}
// EncodeMsg is a convenient shorthand for sending an RLP-encoded message.
func (p *MsgPipeRW) EncodeMsg(code uint64, data ...interface{}) error {
return p.WriteMsg(NewMsg(code, data...))
}
// ReadMsg returns a message sent on the other end of the pipe.
func (p *MsgPipeRW) ReadMsg() (Msg, error) {
if atomic.LoadInt32(p.closed) == 0 {

6
p2p/message_test.go
View File

@ -75,8 +75,8 @@ func TestDecodeRealMsg(t *testing.T) {
func ExampleMsgPipe() {
rw1, rw2 := MsgPipe()
go func() {
rw1.EncodeMsg(8, []byte{0, 0})
rw1.EncodeMsg(5, []byte{1, 1})
EncodeMsg(rw1, 8, []byte{0, 0})
EncodeMsg(rw1, 5, []byte{1, 1})
rw1.Close()
}()
@ -100,7 +100,7 @@ loop:
rw1, rw2 := MsgPipe()
done := make(chan struct{})
go func() {
if err := rw1.EncodeMsg(1); err == nil {
if err := EncodeMsg(rw1, 1); err == nil {
t.Error("EncodeMsg returned nil error")
} else if err != ErrPipeClosed {
t.Error("EncodeMsg returned wrong error: got %v, want %v", err, ErrPipeClosed)

22
p2p/peer.go
View File

@ -460,25 +460,3 @@ func (r *eofSignal) Read(buf []byte) (int, error) {
}
return n, err
}
func (peer *Peer) PeerList() []interface{} {
peers := peer.otherPeers()
ds := make([]interface{}, 0, len(peers))
for _, p := range peers {
p.infolock.Lock()
addr := p.listenAddr
p.infolock.Unlock()
// filter out this peer and peers that are not listening or
// have not completed the handshake.
// TODO: track previously sent peers and exclude them as well.
if p == peer || addr == nil {
continue
}
ds = append(ds, addr)
}
ourAddr := peer.ourListenAddr
if ourAddr != nil && !ourAddr.IP.IsLoopback() && !ourAddr.IP.IsUnspecified() {
ds = append(ds, ourAddr)
}
return ds
}

4
p2p/peer_test.go
View File

@ -126,10 +126,10 @@ func TestPeerProtoEncodeMsg(t *testing.T) {
Name: "a",
Length: 2,
Run: func(peer *Peer, rw MsgReadWriter) error {
if err := rw.EncodeMsg(2); err == nil {
if err := EncodeMsg(rw, 2); err == nil {
t.Error("expected error for out-of-range msg code, got nil")
}
if err := rw.EncodeMsg(1, "foo", "bar"); err != nil {
if err := EncodeMsg(rw, 1, "foo", "bar"); err != nil {
t.Errorf("write error: %v", err)
}
return nil

34
p2p/protocol.go
View File

@ -119,14 +119,14 @@ func (bp *baseProtocol) loop(quit <-chan error) error {
getPeersTick := time.NewTicker(10 * time.Second)
defer getPeersTick.Stop()
err := bp.rw.EncodeMsg(getPeersMsg)
err := EncodeMsg(bp.rw, getPeersMsg)
for err == nil {
select {
case err = <-quit:
return err
case <-getPeersTick.C:
err = bp.rw.EncodeMsg(getPeersMsg)
err = EncodeMsg(bp.rw, getPeersMsg)
case event := <-activity.Chan():
ping.Reset(pingTimeout)
lastActive = event.(time.Time)
@ -134,7 +134,7 @@ func (bp *baseProtocol) loop(quit <-chan error) error {
if lastActive.Add(pingTimeout * 2).Before(t) {
err = newPeerError(errPingTimeout, "")
} else if lastActive.Add(pingTimeout).Before(t) {
err = bp.rw.EncodeMsg(pingMsg)
err = EncodeMsg(bp.rw, pingMsg)
}
}
}
@ -164,12 +164,12 @@ func (bp *baseProtocol) handle(rw MsgReadWriter) error {
return discRequestedError(reason[0])
case pingMsg:
return bp.rw.EncodeMsg(pongMsg)
return EncodeMsg(bp.rw, pongMsg)
case pongMsg:
case getPeersMsg:
peers := bp.peer.PeerList()
peers := bp.peerList()
// this is dangerous. the spec says that we should _delay_
// sending the response if no new information is available.
// this means that would need to send a response later when
@ -177,7 +177,7 @@ func (bp *baseProtocol) handle(rw MsgReadWriter) error {
//
// TODO: add event mechanism to notify baseProtocol for new peers
if len(peers) > 0 {
return bp.rw.EncodeMsg(peersMsg, peers...)
return EncodeMsg(bp.rw, peersMsg, peers...)
}
case peersMsg:
@ -264,3 +264,25 @@ func (bp *baseProtocol) handshakeMsg() Msg {
bp.peer.ourID.Pubkey()[1:],
)
}
func (bp *baseProtocol) peerList() []interface{} {
peers := bp.peer.otherPeers()
ds := make([]interface{}, 0, len(peers))
for _, p := range peers {
p.infolock.Lock()
addr := p.listenAddr
p.infolock.Unlock()
// filter out this peer and peers that are not listening or
// have not completed the handshake.
// TODO: track previously sent peers and exclude them as well.
if p == bp.peer || addr == nil {
continue
}
ds = append(ds, addr)
}
ourAddr := bp.peer.ourListenAddr
if ourAddr != nil && !ourAddr.IP.IsLoopback() && !ourAddr.IP.IsUnspecified() {
ds = append(ds, ourAddr)
}
return ds
}

68
p2p/protocol_test.go
View File

@ -4,6 +4,7 @@ import (
"fmt"
"net"
"reflect"
"sync"
"testing"
"github.com/ethereum/go-ethereum/crypto"
@ -36,50 +37,71 @@ func newTestPeer() (peer *Peer) {
}
func TestBaseProtocolPeers(t *testing.T) {
cannedPeerList := []*peerAddr{
peerList := []*peerAddr{
{IP: net.ParseIP("1.2.3.4"), Port: 2222, Pubkey: []byte{}},
{IP: net.ParseIP("5.6.7.8"), Port: 3333, Pubkey: []byte{}},
}
var ownAddr *peerAddr = &peerAddr{IP: net.ParseIP("1.3.5.7"), Port: 1111, Pubkey: []byte{}}
listenAddr := &peerAddr{IP: net.ParseIP("1.3.5.7"), Port: 1111, Pubkey: []byte{}}
rw1, rw2 := MsgPipe()
defer rw1.Close()
wg := new(sync.WaitGroup)
// run matcher, close pipe when addresses have arrived
addrChan := make(chan *peerAddr, len(cannedPeerList))
numPeers := len(peerList) + 1
addrChan := make(chan *peerAddr)
wg.Add(1)
go func() {
for _, want := range cannedPeerList {
got := <-addrChan
t.Logf("got peer: %+v", got)
i := 0
for got := range addrChan {
var want *peerAddr
switch {
case i < len(peerList):
want = peerList[i]
case i == len(peerList):
want = listenAddr // listenAddr should be the last thing sent
}
t.Logf("got peer %d/%d: %v", i+1, numPeers, got)
if !reflect.DeepEqual(want, got) {
t.Errorf("mismatch: got %#v, want %#v", got, want)
t.Errorf("mismatch: got %+v, want %+v", got, want)
}
i++
if i == numPeers {
break
}
}
close(addrChan)
var own []*peerAddr
var got *peerAddr
for got = range addrChan {
own = append(own, got)
if i != numPeers {
t.Errorf("wrong number of peers received: got %d, want %d", i, numPeers)
}
if len(own) != 1 || !reflect.DeepEqual(ownAddr, own[0]) {
t.Errorf("mismatch: peers own address is incorrectly or not given, got %v, want %#v", ownAddr)
}
rw2.Close()
rw1.Close()
wg.Done()
}()
// run first peer
// run first peer (in background)
peer1 := newTestPeer()
peer1.ourListenAddr = ownAddr
peer1.ourListenAddr = listenAddr
peer1.otherPeers = func() []*Peer {
pl := make([]*Peer, len(cannedPeerList))
for i, addr := range cannedPeerList {
pl := make([]*Peer, len(peerList))
for i, addr := range peerList {
pl[i] = &Peer{listenAddr: addr}
}
return pl
}
go runBaseProtocol(peer1, rw1)
wg.Add(1)
go func() {
runBaseProtocol(peer1, rw1)
wg.Done()
}()
// run second peer
peer2 := newTestPeer()
peer2.newPeerAddr = addrChan // feed peer suggestions into matcher
if err := runBaseProtocol(peer2, rw2); err != ErrPipeClosed {
t.Errorf("peer2 terminated with unexpected error: %v", err)
}
// terminate matcher
close(addrChan)
wg.Wait()
}
func TestBaseProtocolDisconnect(t *testing.T) {
@ -93,7 +115,7 @@ func TestBaseProtocolDisconnect(t *testing.T) {
if err := expectMsg(rw2, handshakeMsg); err != nil {
t.Error(err)
}
err := rw2.EncodeMsg(handshakeMsg,
err := EncodeMsg(rw2, handshakeMsg,
baseProtocolVersion,
"",
[]interface{}{},
@ -106,7 +128,7 @@ func TestBaseProtocolDisconnect(t *testing.T) {
if err := expectMsg(rw2, getPeersMsg); err != nil {
t.Error(err)
}
if err := rw2.EncodeMsg(discMsg, DiscQuitting); err != nil {
if err := EncodeMsg(rw2, discMsg, DiscQuitting); err != nil {
t.Error(err)
}