lnd.xprv/lnwire/lnwire_test.go
Olaoluwa Osuntokun 6e7fcac1f5
lnwire: properly encode/decode addrs in NodeAnnouncement msg
This commit fixes an existing deviation in the way we encode+decode the
addresses within the NodeAnnouncement message with that of the
specification. Prior to this commit, we would encode the _number_ of
addresses, rather than the number of bytes it takes to encode all the
addresses.

In this commit, we fix this mistake by properly writing out the total
number of bytes, modifying our parsing to take account of this new
encoding.
2017-09-18 17:27:51 -07:00

617 lines
16 KiB
Go

package lnwire
import (
"bytes"
"encoding/hex"
"math"
"math/big"
"math/rand"
"net"
"reflect"
"testing"
"testing/quick"
"github.com/davecgh/go-spew/spew"
"github.com/roasbeef/btcd/btcec"
"github.com/roasbeef/btcd/chaincfg/chainhash"
"github.com/roasbeef/btcd/wire"
"github.com/roasbeef/btcutil"
)
var (
revHash = [32]byte{
0xb7, 0x94, 0x38, 0x5f, 0x2d, 0x1e, 0xf7, 0xab,
0x4d, 0x92, 0x73, 0xd1, 0x90, 0x63, 0x81, 0xb4,
0x4f, 0x2f, 0x6f, 0x25, 0x88, 0xa3, 0xef, 0xb9,
0x6a, 0x49, 0x18, 0x83, 0x31, 0x98, 0x47, 0x53,
}
shaHash1Bytes, _ = hex.DecodeString("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
shaHash1, _ = chainhash.NewHash(shaHash1Bytes)
outpoint1 = wire.NewOutPoint(shaHash1, 0)
testSig = &btcec.Signature{
R: new(big.Int),
S: new(big.Int),
}
_, _ = testSig.R.SetString("63724406601629180062774974542967536251589935445068131219452686511677818569431", 10)
_, _ = testSig.S.SetString("18801056069249825825291287104931333862866033135609736119018462340006816851118", 10)
// TODO(roasbeef): randomly generate from three types of addrs
a1 = &net.TCPAddr{IP: (net.IP)([]byte{0x7f, 0x0, 0x0, 0x1}), Port: 8333}
a2, _ = net.ResolveTCPAddr("tcp", "[2001:db8:85a3:0:0:8a2e:370:7334]:80")
testAddrs = []net.Addr{a1, a2}
)
func randPubKey() (*btcec.PublicKey, error) {
priv, err := btcec.NewPrivateKey(btcec.S256())
if err != nil {
return nil, err
}
return priv.PubKey(), nil
}
func randFeatureVector(r *rand.Rand) *FeatureVector {
numFeatures := r.Int31n(10000)
features := make([]Feature, numFeatures)
for i := int32(0); i < numFeatures; i++ {
features[i] = Feature{
Flag: featureFlag(rand.Int31n(2) + 1),
}
}
return NewFeatureVector(features)
}
func TestMaxOutPointIndex(t *testing.T) {
t.Parallel()
op := wire.OutPoint{
Index: math.MaxUint32,
}
var b bytes.Buffer
if err := writeElement(&b, op); err == nil {
t.Fatalf("write of outPoint should fail, index exceeds 16-bits")
}
}
func TestEmptyMessageUnknownType(t *testing.T) {
t.Parallel()
fakeType := MessageType(math.MaxUint16)
if _, err := makeEmptyMessage(fakeType); err == nil {
t.Fatalf("should not be able to make an empty message of an " +
"unknown type")
}
}
// TestLightningWireProtocol uses the testing/quick package to create a series
// of fuzz tests to attempt to break a primary scenario which is implemented as
// property based testing scenario.
func TestLightningWireProtocol(t *testing.T) {
t.Parallel()
// mainScenario is the primary test that will programmatically be
// executed for all registered wire messages. The quick-checker within
// testing/quick will attempt to find an input to this function, s.t
// the function returns false, if so then we've found an input that
// violates our model of the system.
mainScenario := func(msg Message) bool {
// Give a new message, we'll serialize the message into a new
// bytes buffer.
var b bytes.Buffer
if _, err := WriteMessage(&b, msg, 0); err != nil {
t.Fatalf("unable to write msg: %v", err)
return false
}
// Next, we'll ensure that the serialized payload (subtracting
// the 2 bytes for the message type) is _below_ the specified
// max payload size for this message.
payloadLen := uint32(b.Len()) - 2
if payloadLen > msg.MaxPayloadLength(0) {
t.Fatalf("msg payload constraint violated: %v > %v",
payloadLen, msg.MaxPayloadLength(0))
return false
}
// Finally, we'll deserialize the message from the written
// buffer, and finally assert that the messages are equal.
newMsg, err := ReadMessage(&b, 0)
if err != nil {
t.Fatalf("unable to read msg: %v", err)
return false
}
if !reflect.DeepEqual(msg, newMsg) {
t.Fatalf("messages don't match after re-encoding: %v "+
"vs %v", spew.Sdump(msg), spew.Sdump(newMsg))
return false
}
return true
}
// customTypeGen is a map of functions that are able to randomly
// generate a given type. These functions are needed for types which
// are too complex for the testing/quick package to automatically
// generate.
customTypeGen := map[MessageType]func([]reflect.Value, *rand.Rand){
MsgInit: func(v []reflect.Value, r *rand.Rand) {
req := NewInitMessage(
randFeatureVector(r),
randFeatureVector(r),
)
req.GlobalFeatures.featuresMap = nil
req.LocalFeatures.featuresMap = nil
v[0] = reflect.ValueOf(*req)
},
MsgOpenChannel: func(v []reflect.Value, r *rand.Rand) {
req := OpenChannel{
FundingAmount: btcutil.Amount(r.Int63()),
PushAmount: MilliSatoshi(r.Int63()),
DustLimit: btcutil.Amount(r.Int63()),
MaxValueInFlight: MilliSatoshi(r.Int63()),
ChannelReserve: btcutil.Amount(r.Int63()),
HtlcMinimum: MilliSatoshi(r.Int31()),
FeePerKiloWeight: uint32(r.Int63()),
CsvDelay: uint16(r.Int31()),
MaxAcceptedHTLCs: uint16(r.Int31()),
ChannelFlags: byte(r.Int31()),
}
if _, err := r.Read(req.ChainHash[:]); err != nil {
t.Fatalf("unable to generate chain hash: %v", err)
return
}
if _, err := r.Read(req.PendingChannelID[:]); err != nil {
t.Fatalf("unable to generate pending chan id: %v", err)
return
}
var err error
req.FundingKey, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.RevocationPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.PaymentPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.DelayedPaymentPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.FirstCommitmentPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
MsgAcceptChannel: func(v []reflect.Value, r *rand.Rand) {
req := AcceptChannel{
DustLimit: btcutil.Amount(r.Int63()),
MaxValueInFlight: MilliSatoshi(r.Int63()),
ChannelReserve: btcutil.Amount(r.Int63()),
MinAcceptDepth: uint32(r.Int31()),
HtlcMinimum: MilliSatoshi(r.Int31()),
CsvDelay: uint16(r.Int31()),
MaxAcceptedHTLCs: uint16(r.Int31()),
}
if _, err := r.Read(req.PendingChannelID[:]); err != nil {
t.Fatalf("unable to generate pending chan id: %v", err)
return
}
var err error
req.FundingKey, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.RevocationPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.PaymentPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.DelayedPaymentPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.FirstCommitmentPoint, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
MsgFundingCreated: func(v []reflect.Value, r *rand.Rand) {
req := FundingCreated{}
if _, err := r.Read(req.PendingChannelID[:]); err != nil {
t.Fatalf("unable to generate pending chan id: %v", err)
return
}
if _, err := r.Read(req.FundingPoint.Hash[:]); err != nil {
t.Fatalf("unable to generate hash: %v", err)
return
}
req.FundingPoint.Index = uint32(r.Int31()) % math.MaxUint16
req.CommitSig = testSig
v[0] = reflect.ValueOf(req)
},
MsgFundingSigned: func(v []reflect.Value, r *rand.Rand) {
var c [32]byte
if _, err := r.Read(c[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
req := FundingSigned{
ChanID: ChannelID(c),
CommitSig: testSig,
}
v[0] = reflect.ValueOf(req)
},
MsgFundingLocked: func(v []reflect.Value, r *rand.Rand) {
var c [32]byte
if _, err := r.Read(c[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
pubKey, err := randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req := NewFundingLocked(ChannelID(c), pubKey)
v[0] = reflect.ValueOf(*req)
},
MsgClosingSigned: func(v []reflect.Value, r *rand.Rand) {
req := ClosingSigned{
FeeSatoshis: uint64(r.Int63()),
Signature: testSig,
}
if _, err := r.Read(req.ChannelID[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
MsgCommitSig: func(v []reflect.Value, r *rand.Rand) {
req := NewCommitSig()
if _, err := r.Read(req.ChanID[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
req.CommitSig = testSig
// Only create the slice if there will be any signatures
// in it to prevent false positive test failures due to
// an empty slice versus a nil slice.
numSigs := uint16(r.Int31n(1020))
if numSigs > 0 {
req.HtlcSigs = make([]*btcec.Signature, numSigs)
}
for i := 0; i < int(numSigs); i++ {
req.HtlcSigs[i] = testSig
}
v[0] = reflect.ValueOf(*req)
},
MsgRevokeAndAck: func(v []reflect.Value, r *rand.Rand) {
req := NewRevokeAndAck()
if _, err := r.Read(req.ChanID[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
if _, err := r.Read(req.Revocation[:]); err != nil {
t.Fatalf("unable to generate bytes: %v", err)
return
}
var err error
req.NextRevocationKey, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
v[0] = reflect.ValueOf(*req)
},
MsgChannelAnnouncement: func(v []reflect.Value, r *rand.Rand) {
req := ChannelAnnouncement{
ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
Features: randFeatureVector(r),
}
req.Features.featuresMap = nil
req.NodeSig1 = testSig
req.NodeSig2 = testSig
req.BitcoinSig1 = testSig
req.BitcoinSig2 = testSig
var err error
req.NodeID1, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.NodeID2, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.BitcoinKey1, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
req.BitcoinKey2, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
if _, err := r.Read(req.ChainHash[:]); err != nil {
t.Fatalf("unable to generate chain hash: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
MsgNodeAnnouncement: func(v []reflect.Value, r *rand.Rand) {
var a [32]byte
if _, err := r.Read(a[:]); err != nil {
t.Fatalf("unable to generate alias: %v", err)
return
}
req := NodeAnnouncement{
Signature: testSig,
Features: randFeatureVector(r),
Timestamp: uint32(r.Int31()),
Alias: a,
RGBColor: RGB{
red: uint8(r.Int31()),
green: uint8(r.Int31()),
blue: uint8(r.Int31()),
},
// TODO(roasbeef): proper gen rand addrs
Addresses: testAddrs,
}
req.Features.featuresMap = nil
var err error
req.NodeID, err = randPubKey()
if err != nil {
t.Fatalf("unable to generate key: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
MsgChannelUpdate: func(v []reflect.Value, r *rand.Rand) {
req := ChannelUpdate{
Signature: testSig,
ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
Timestamp: uint32(r.Int31()),
Flags: uint16(r.Int31()),
TimeLockDelta: uint16(r.Int31()),
HtlcMinimumMsat: MilliSatoshi(r.Int63()),
BaseFee: uint32(r.Int31()),
FeeRate: uint32(r.Int31()),
}
if _, err := r.Read(req.ChainHash[:]); err != nil {
t.Fatalf("unable to generate chain hash: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
MsgAnnounceSignatures: func(v []reflect.Value, r *rand.Rand) {
req := AnnounceSignatures{
ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
NodeSignature: testSig,
BitcoinSignature: testSig,
}
if _, err := r.Read(req.ChannelID[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
v[0] = reflect.ValueOf(req)
},
}
// With the above types defined, we'll now generate a slice of
// scenarios to feed into quick.Check. The function scans in input
// space of the target function under test, so we'll need to create a
// series of wrapper functions to force it to iterate over the target
// types, but re-use the mainScenario defined above.
tests := []struct {
msgType MessageType
scenario interface{}
}{
{
msgType: MsgInit,
scenario: func(m Init) bool {
return mainScenario(&m)
},
},
{
msgType: MsgError,
scenario: func(m Error) bool {
return mainScenario(&m)
},
},
{
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: 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)
}
}
}