f7964e7474
In this commit, we add support within lnwire for the optional dataloss fields in ChannelReestablish. With these fields, it’s possible to: verify that the remote node really knows of the state of our prior local commitment, and also that they’ve sent us the current commitment point for their current state. In the event of dataloss, it’s possible for the party which lost data to claim their commitment output in the remote party’s commitment if they broadcast their current commitment transaction.
652 lines
16 KiB
Go
652 lines
16 KiB
Go
package lnwire
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import (
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"bytes"
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"encoding/hex"
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"math"
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"math/big"
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"math/rand"
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"net"
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"reflect"
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"testing"
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"testing/quick"
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"github.com/davecgh/go-spew/spew"
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"github.com/roasbeef/btcd/btcec"
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"github.com/roasbeef/btcd/chaincfg/chainhash"
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"github.com/roasbeef/btcd/wire"
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"github.com/roasbeef/btcutil"
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)
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var (
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revHash = [32]byte{
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0xb7, 0x94, 0x38, 0x5f, 0x2d, 0x1e, 0xf7, 0xab,
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0x4d, 0x92, 0x73, 0xd1, 0x90, 0x63, 0x81, 0xb4,
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0x4f, 0x2f, 0x6f, 0x25, 0x88, 0xa3, 0xef, 0xb9,
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0x6a, 0x49, 0x18, 0x83, 0x31, 0x98, 0x47, 0x53,
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}
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shaHash1Bytes, _ = hex.DecodeString("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
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shaHash1, _ = chainhash.NewHash(shaHash1Bytes)
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outpoint1 = wire.NewOutPoint(shaHash1, 0)
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testSig = &btcec.Signature{
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R: new(big.Int),
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S: new(big.Int),
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}
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_, _ = testSig.R.SetString("63724406601629180062774974542967536251589935445068131219452686511677818569431", 10)
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_, _ = testSig.S.SetString("18801056069249825825291287104931333862866033135609736119018462340006816851118", 10)
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// TODO(roasbeef): randomly generate from three types of addrs
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a1 = &net.TCPAddr{IP: (net.IP)([]byte{0x7f, 0x0, 0x0, 0x1}), Port: 8333}
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a2, _ = net.ResolveTCPAddr("tcp", "[2001:db8:85a3:0:0:8a2e:370:7334]:80")
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testAddrs = []net.Addr{a1, a2}
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)
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func randPubKey() (*btcec.PublicKey, error) {
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priv, err := btcec.NewPrivateKey(btcec.S256())
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if err != nil {
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return nil, err
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}
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return priv.PubKey(), nil
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}
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func randRawFeatureVector(r *rand.Rand) *RawFeatureVector {
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featureVec := NewRawFeatureVector()
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for i := 0; i < 10000; i++ {
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if r.Int31n(2) == 0 {
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featureVec.Set(FeatureBit(i))
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}
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}
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return featureVec
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}
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func TestMaxOutPointIndex(t *testing.T) {
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t.Parallel()
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op := wire.OutPoint{
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Index: math.MaxUint32,
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}
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var b bytes.Buffer
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if err := writeElement(&b, op); err == nil {
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t.Fatalf("write of outPoint should fail, index exceeds 16-bits")
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}
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}
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func TestEmptyMessageUnknownType(t *testing.T) {
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t.Parallel()
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fakeType := MessageType(math.MaxUint16)
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if _, err := makeEmptyMessage(fakeType); err == nil {
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t.Fatalf("should not be able to make an empty message of an " +
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"unknown type")
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}
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}
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// TestLightningWireProtocol uses the testing/quick package to create a series
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// of fuzz tests to attempt to break a primary scenario which is implemented as
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// property based testing scenario.
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func TestLightningWireProtocol(t *testing.T) {
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t.Parallel()
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// mainScenario is the primary test that will programmatically be
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// executed for all registered wire messages. The quick-checker within
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// testing/quick will attempt to find an input to this function, s.t
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// the function returns false, if so then we've found an input that
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// violates our model of the system.
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mainScenario := func(msg Message) bool {
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// Give a new message, we'll serialize the message into a new
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// bytes buffer.
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var b bytes.Buffer
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if _, err := WriteMessage(&b, msg, 0); err != nil {
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t.Fatalf("unable to write msg: %v", err)
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return false
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}
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// Next, we'll ensure that the serialized payload (subtracting
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// the 2 bytes for the message type) is _below_ the specified
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// max payload size for this message.
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payloadLen := uint32(b.Len()) - 2
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if payloadLen > msg.MaxPayloadLength(0) {
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t.Fatalf("msg payload constraint violated: %v > %v",
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payloadLen, msg.MaxPayloadLength(0))
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return false
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}
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// Finally, we'll deserialize the message from the written
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// buffer, and finally assert that the messages are equal.
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newMsg, err := ReadMessage(&b, 0)
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if err != nil {
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t.Fatalf("unable to read msg: %v", err)
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return false
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}
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if !reflect.DeepEqual(msg, newMsg) {
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t.Fatalf("messages don't match after re-encoding: %v "+
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"vs %v", spew.Sdump(msg), spew.Sdump(newMsg))
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return false
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}
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return true
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}
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// customTypeGen is a map of functions that are able to randomly
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// generate a given type. These functions are needed for types which
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// are too complex for the testing/quick package to automatically
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// generate.
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customTypeGen := map[MessageType]func([]reflect.Value, *rand.Rand){
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MsgInit: func(v []reflect.Value, r *rand.Rand) {
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req := NewInitMessage(
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randRawFeatureVector(r),
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randRawFeatureVector(r),
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)
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v[0] = reflect.ValueOf(*req)
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},
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MsgOpenChannel: func(v []reflect.Value, r *rand.Rand) {
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req := OpenChannel{
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FundingAmount: btcutil.Amount(r.Int63()),
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PushAmount: MilliSatoshi(r.Int63()),
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DustLimit: btcutil.Amount(r.Int63()),
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MaxValueInFlight: MilliSatoshi(r.Int63()),
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ChannelReserve: btcutil.Amount(r.Int63()),
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HtlcMinimum: MilliSatoshi(r.Int31()),
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FeePerKiloWeight: uint32(r.Int63()),
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CsvDelay: uint16(r.Int31()),
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MaxAcceptedHTLCs: uint16(r.Int31()),
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ChannelFlags: FundingFlag(uint8(r.Int31())),
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}
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if _, err := r.Read(req.ChainHash[:]); err != nil {
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t.Fatalf("unable to generate chain hash: %v", err)
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return
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}
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if _, err := r.Read(req.PendingChannelID[:]); err != nil {
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t.Fatalf("unable to generate pending chan id: %v", err)
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return
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}
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var err error
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req.FundingKey, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.RevocationPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.PaymentPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.DelayedPaymentPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.HtlcPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.FirstCommitmentPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgAcceptChannel: func(v []reflect.Value, r *rand.Rand) {
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req := AcceptChannel{
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DustLimit: btcutil.Amount(r.Int63()),
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MaxValueInFlight: MilliSatoshi(r.Int63()),
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ChannelReserve: btcutil.Amount(r.Int63()),
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MinAcceptDepth: uint32(r.Int31()),
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HtlcMinimum: MilliSatoshi(r.Int31()),
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CsvDelay: uint16(r.Int31()),
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MaxAcceptedHTLCs: uint16(r.Int31()),
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}
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if _, err := r.Read(req.PendingChannelID[:]); err != nil {
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t.Fatalf("unable to generate pending chan id: %v", err)
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return
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}
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var err error
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req.FundingKey, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.RevocationPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.PaymentPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.DelayedPaymentPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.HtlcPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.FirstCommitmentPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgFundingCreated: func(v []reflect.Value, r *rand.Rand) {
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req := FundingCreated{}
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if _, err := r.Read(req.PendingChannelID[:]); err != nil {
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t.Fatalf("unable to generate pending chan id: %v", err)
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return
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}
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if _, err := r.Read(req.FundingPoint.Hash[:]); err != nil {
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t.Fatalf("unable to generate hash: %v", err)
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return
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}
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req.FundingPoint.Index = uint32(r.Int31()) % math.MaxUint16
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req.CommitSig = testSig
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v[0] = reflect.ValueOf(req)
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},
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MsgFundingSigned: func(v []reflect.Value, r *rand.Rand) {
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var c [32]byte
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if _, err := r.Read(c[:]); err != nil {
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t.Fatalf("unable to generate chan id: %v", err)
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return
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}
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req := FundingSigned{
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ChanID: ChannelID(c),
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CommitSig: testSig,
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgFundingLocked: func(v []reflect.Value, r *rand.Rand) {
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var c [32]byte
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if _, err := r.Read(c[:]); err != nil {
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t.Fatalf("unable to generate chan id: %v", err)
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return
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}
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pubKey, err := randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req := NewFundingLocked(ChannelID(c), pubKey)
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v[0] = reflect.ValueOf(*req)
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},
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MsgClosingSigned: func(v []reflect.Value, r *rand.Rand) {
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req := ClosingSigned{
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FeeSatoshis: uint64(r.Int63()),
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Signature: testSig,
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}
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if _, err := r.Read(req.ChannelID[:]); err != nil {
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t.Fatalf("unable to generate chan id: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgCommitSig: func(v []reflect.Value, r *rand.Rand) {
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req := NewCommitSig()
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if _, err := r.Read(req.ChanID[:]); err != nil {
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t.Fatalf("unable to generate chan id: %v", err)
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return
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}
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req.CommitSig = testSig
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// Only create the slice if there will be any signatures
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// in it to prevent false positive test failures due to
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// an empty slice versus a nil slice.
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numSigs := uint16(r.Int31n(1020))
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if numSigs > 0 {
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req.HtlcSigs = make([]*btcec.Signature, numSigs)
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}
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for i := 0; i < int(numSigs); i++ {
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req.HtlcSigs[i] = testSig
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}
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v[0] = reflect.ValueOf(*req)
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},
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MsgRevokeAndAck: func(v []reflect.Value, r *rand.Rand) {
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req := NewRevokeAndAck()
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if _, err := r.Read(req.ChanID[:]); err != nil {
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t.Fatalf("unable to generate chan id: %v", err)
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return
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}
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if _, err := r.Read(req.Revocation[:]); err != nil {
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t.Fatalf("unable to generate bytes: %v", err)
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return
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}
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var err error
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req.NextRevocationKey, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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v[0] = reflect.ValueOf(*req)
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},
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MsgChannelAnnouncement: func(v []reflect.Value, r *rand.Rand) {
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req := ChannelAnnouncement{
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ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
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Features: randRawFeatureVector(r),
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}
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req.NodeSig1 = testSig
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req.NodeSig2 = testSig
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req.BitcoinSig1 = testSig
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req.BitcoinSig2 = testSig
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var err error
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req.NodeID1, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.NodeID2, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.BitcoinKey1, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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req.BitcoinKey2, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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if _, err := r.Read(req.ChainHash[:]); err != nil {
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t.Fatalf("unable to generate chain hash: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgNodeAnnouncement: func(v []reflect.Value, r *rand.Rand) {
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var a [32]byte
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if _, err := r.Read(a[:]); err != nil {
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t.Fatalf("unable to generate alias: %v", err)
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return
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}
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req := NodeAnnouncement{
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Signature: testSig,
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Features: randRawFeatureVector(r),
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Timestamp: uint32(r.Int31()),
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Alias: a,
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RGBColor: RGB{
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red: uint8(r.Int31()),
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green: uint8(r.Int31()),
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blue: uint8(r.Int31()),
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},
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// TODO(roasbeef): proper gen rand addrs
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Addresses: testAddrs,
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}
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var err error
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req.NodeID, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgChannelUpdate: func(v []reflect.Value, r *rand.Rand) {
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req := ChannelUpdate{
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Signature: testSig,
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ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
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Timestamp: uint32(r.Int31()),
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Flags: uint16(r.Int31()),
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TimeLockDelta: uint16(r.Int31()),
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HtlcMinimumMsat: MilliSatoshi(r.Int63()),
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BaseFee: uint32(r.Int31()),
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FeeRate: uint32(r.Int31()),
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}
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if _, err := r.Read(req.ChainHash[:]); err != nil {
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t.Fatalf("unable to generate chain hash: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgAnnounceSignatures: func(v []reflect.Value, r *rand.Rand) {
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req := AnnounceSignatures{
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ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
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NodeSignature: testSig,
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BitcoinSignature: testSig,
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}
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if _, err := r.Read(req.ChannelID[:]); err != nil {
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t.Fatalf("unable to generate chan id: %v", err)
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return
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}
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v[0] = reflect.ValueOf(req)
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},
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MsgChannelReestablish: func(v []reflect.Value, r *rand.Rand) {
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req := ChannelReestablish{
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NextLocalCommitHeight: uint64(r.Int63()),
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RemoteCommitTailHeight: uint64(r.Int63()),
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}
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// With a 50/50 probability, we'll include the
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// additional fields so we can test our ability to
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// properly parse, and write out the optional fields.
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if r.Int()%2 == 0 {
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_, err := r.Read(req.LastRemoteCommitSecret[:])
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if err != nil {
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t.Fatalf("unable to read commit secret: %v", err)
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return
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}
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req.LocalUnrevokedCommitPoint, err = randPubKey()
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if err != nil {
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t.Fatalf("unable to generate key: %v", err)
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return
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}
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}
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v[0] = reflect.ValueOf(req)
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},
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}
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// With the above types defined, we'll now generate a slice of
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// scenarios to feed into quick.Check. The function scans in input
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// space of the target function under test, so we'll need to create a
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// series of wrapper functions to force it to iterate over the target
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// types, but re-use the mainScenario defined above.
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tests := []struct {
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msgType MessageType
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scenario interface{}
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}{
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{
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msgType: MsgInit,
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scenario: func(m Init) bool {
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return mainScenario(&m)
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},
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},
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{
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msgType: MsgError,
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scenario: func(m Error) bool {
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return mainScenario(&m)
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},
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|
},
|
|
{
|
|
msgType: MsgPing,
|
|
scenario: func(m Ping) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgPong,
|
|
scenario: func(m Pong) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgOpenChannel,
|
|
scenario: func(m OpenChannel) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgAcceptChannel,
|
|
scenario: func(m AcceptChannel) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgFundingCreated,
|
|
scenario: func(m FundingCreated) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgFundingSigned,
|
|
scenario: func(m FundingSigned) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgFundingLocked,
|
|
scenario: func(m FundingLocked) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgShutdown,
|
|
scenario: func(m Shutdown) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgClosingSigned,
|
|
scenario: func(m ClosingSigned) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgUpdateAddHTLC,
|
|
scenario: func(m UpdateAddHTLC) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgUpdateFufillHTLC,
|
|
scenario: func(m UpdateFufillHTLC) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgUpdateFailHTLC,
|
|
scenario: func(m UpdateFailHTLC) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgCommitSig,
|
|
scenario: func(m CommitSig) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgRevokeAndAck,
|
|
scenario: func(m RevokeAndAck) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgUpdateFee,
|
|
scenario: func(m UpdateFee) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
|
|
msgType: MsgUpdateFailMalformedHTLC,
|
|
scenario: func(m UpdateFailMalformedHTLC) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgChannelReestablish,
|
|
scenario: func(m ChannelReestablish) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgChannelAnnouncement,
|
|
scenario: func(m ChannelAnnouncement) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgNodeAnnouncement,
|
|
scenario: func(m NodeAnnouncement) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgChannelUpdate,
|
|
scenario: func(m ChannelUpdate) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
{
|
|
msgType: MsgAnnounceSignatures,
|
|
scenario: func(m AnnounceSignatures) bool {
|
|
return mainScenario(&m)
|
|
},
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
var config *quick.Config
|
|
|
|
// If the type defined is within the custom type gen map above,
|
|
// then we'll modify the default config to use this Value
|
|
// function that knows how to generate the proper types.
|
|
if valueGen, ok := customTypeGen[test.msgType]; ok {
|
|
config = &quick.Config{
|
|
Values: valueGen,
|
|
}
|
|
}
|
|
|
|
t.Logf("Running fuzz tests for msgType=%v", test.msgType)
|
|
if err := quick.Check(test.scenario, config); err != nil {
|
|
t.Fatalf("fuzz checks for msg=%v failed: %v",
|
|
test.msgType, err)
|
|
}
|
|
}
|
|
|
|
}
|