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lnwire_test.go
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package lnwire
import (
"bytes"
crand "crypto/rand"
"encoding/binary"
"encoding/hex"
"fmt"
"image/color"
"io"
"math"
"math/rand"
"net"
"reflect"
"testing"
"testing/quick"
"time"
"github.com/btcsuite/btcd/btcec/v2"
"github.com/btcsuite/btcd/btcec/v2/ecdsa"
"github.com/btcsuite/btcd/btcutil"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/btcsuite/btcd/wire"
"github.com/lightningnetwork/lnd/fn"
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
"github.com/lightningnetwork/lnd/tlv"
"github.com/lightningnetwork/lnd/tor"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var (
shaHash1Bytes, _ = hex.DecodeString("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
shaHash1, _ = chainhash.NewHash(shaHash1Bytes)
outpoint1 = wire.NewOutPoint(shaHash1, 0)
testRBytes, _ = hex.DecodeString("8ce2bc69281ce27da07e6683571319d18e949ddfa2965fb6caa1bf0314f882d7")
testSBytes, _ = hex.DecodeString("299105481d63e0f4bc2a88121167221b6700d72a0ead154c03be696a292d24ae")
testRScalar = new(btcec.ModNScalar)
testSScalar = new(btcec.ModNScalar)
_ = testRScalar.SetByteSlice(testRBytes)
_ = testSScalar.SetByteSlice(testSBytes)
testSig = ecdsa.NewSignature(testRScalar, testSScalar)
)
const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
func randLocalNonce(r *rand.Rand) Musig2Nonce {
var nonce Musig2Nonce
_, _ = io.ReadFull(r, nonce[:])
return nonce
}
func someLocalNonce[T tlv.TlvType](
r *rand.Rand) tlv.OptionalRecordT[T, Musig2Nonce] {
return tlv.SomeRecordT(tlv.NewRecordT[T, Musig2Nonce](
randLocalNonce(r),
))
}
func randPartialSig(r *rand.Rand) (*PartialSig, error) {
var sigBytes [32]byte
if _, err := r.Read(sigBytes[:]); err != nil {
return nil, fmt.Errorf("unable to generate sig: %w", err)
}
var s btcec.ModNScalar
s.SetByteSlice(sigBytes[:])
return &PartialSig{
Sig: s,
}, nil
}
func somePartialSig(t *testing.T,
r *rand.Rand) tlv.OptionalRecordT[PartialSigType, PartialSig] {
sig, err := randPartialSig(r)
if err != nil {
t.Fatal(err)
}
return tlv.SomeRecordT(tlv.NewRecordT[PartialSigType, PartialSig](
*sig,
))
}
func randPartialSigWithNonce(r *rand.Rand) (*PartialSigWithNonce, error) {
var sigBytes [32]byte
if _, err := r.Read(sigBytes[:]); err != nil {
return nil, fmt.Errorf("unable to generate sig: %w", err)
}
var s btcec.ModNScalar
s.SetByteSlice(sigBytes[:])
return &PartialSigWithNonce{
PartialSig: NewPartialSig(s),
Nonce: randLocalNonce(r),
}, nil
}
func somePartialSigWithNonce(t *testing.T,
r *rand.Rand) OptPartialSigWithNonceTLV {
sig, err := randPartialSigWithNonce(r)
if err != nil {
t.Fatal(err)
}
return tlv.SomeRecordT(
tlv.NewRecordT[PartialSigWithNonceType, PartialSigWithNonce](
*sig,
),
)
}
func randAlias(r *rand.Rand) NodeAlias {
var a NodeAlias
for i := range a {
a[i] = letterBytes[r.Intn(len(letterBytes))]
}
return a
}
func randPubKey() (*btcec.PublicKey, error) {
priv, err := btcec.NewPrivateKey()
if err != nil {
return nil, err
}
return priv.PubKey(), nil
}
// pubkeyFromHex parses a Bitcoin public key from a hex encoded string.
func pubkeyFromHex(keyHex string) (*btcec.PublicKey, error) {
pubKeyBytes, err := hex.DecodeString(keyHex)
if err != nil {
return nil, err
}
return btcec.ParsePubKey(pubKeyBytes)
}
// generateRandomBytes returns a slice of n random bytes.
func generateRandomBytes(n int) ([]byte, error) {
b := make([]byte, n)
_, err := crand.Read(b)
if err != nil {
return nil, err
}
return b, nil
}
func randRawKey() ([33]byte, error) {
var n [33]byte
priv, err := btcec.NewPrivateKey()
if err != nil {
return n, err
}
copy(n[:], priv.PubKey().SerializeCompressed())
return n, nil
}
func randDeliveryAddress(r *rand.Rand) (DeliveryAddress, error) {
// Generate size minimum one. Empty scripts should be tested specifically.
size := r.Intn(deliveryAddressMaxSize) + 1
da := DeliveryAddress(make([]byte, size))
_, err := r.Read(da)
return da, err
}
func randRawFeatureVector(r *rand.Rand) *RawFeatureVector {
featureVec := NewRawFeatureVector()
for i := 0; i < 10000; i++ {
if r.Int31n(2) == 0 {
featureVec.Set(FeatureBit(i))
}
}
return featureVec
}
func randTCP4Addr(r *rand.Rand) (*net.TCPAddr, error) {
var ip [4]byte
if _, err := r.Read(ip[:]); err != nil {
return nil, err
}
var port [2]byte
if _, err := r.Read(port[:]); err != nil {
return nil, err
}
addrIP := net.IP(ip[:])
addrPort := int(binary.BigEndian.Uint16(port[:]))
return &net.TCPAddr{IP: addrIP, Port: addrPort}, nil
}
func randTCP6Addr(r *rand.Rand) (*net.TCPAddr, error) {
var ip [16]byte
if _, err := r.Read(ip[:]); err != nil {
return nil, err
}
var port [2]byte
if _, err := r.Read(port[:]); err != nil {
return nil, err
}
addrIP := net.IP(ip[:])
addrPort := int(binary.BigEndian.Uint16(port[:]))
return &net.TCPAddr{IP: addrIP, Port: addrPort}, nil
}
func randV2OnionAddr(r *rand.Rand) (*tor.OnionAddr, error) {
var serviceID [tor.V2DecodedLen]byte
if _, err := r.Read(serviceID[:]); err != nil {
return nil, err
}
var port [2]byte
if _, err := r.Read(port[:]); err != nil {
return nil, err
}
onionService := tor.Base32Encoding.EncodeToString(serviceID[:])
onionService += tor.OnionSuffix
addrPort := int(binary.BigEndian.Uint16(port[:]))
return &tor.OnionAddr{OnionService: onionService, Port: addrPort}, nil
}
func randV3OnionAddr(r *rand.Rand) (*tor.OnionAddr, error) {
var serviceID [tor.V3DecodedLen]byte
if _, err := r.Read(serviceID[:]); err != nil {
return nil, err
}
var port [2]byte
if _, err := r.Read(port[:]); err != nil {
return nil, err
}
onionService := tor.Base32Encoding.EncodeToString(serviceID[:])
onionService += tor.OnionSuffix
addrPort := int(binary.BigEndian.Uint16(port[:]))
return &tor.OnionAddr{OnionService: onionService, Port: addrPort}, nil
}
func randOpaqueAddr(r *rand.Rand) (*OpaqueAddrs, error) {
payloadLen := r.Int63n(64) + 1
payload := make([]byte, payloadLen)
// The first byte is the address type. So set it to one that we
// definitely don't know about.
payload[0] = math.MaxUint8
// Generate random bytes for the rest of the payload.
if _, err := r.Read(payload[1:]); err != nil {
return nil, err
}
return &OpaqueAddrs{Payload: payload}, nil
}
func randAddrs(r *rand.Rand) ([]net.Addr, error) {
tcp4Addr, err := randTCP4Addr(r)
if err != nil {
return nil, err
}
tcp6Addr, err := randTCP6Addr(r)
if err != nil {
return nil, err
}
v2OnionAddr, err := randV2OnionAddr(r)
if err != nil {
return nil, err
}
v3OnionAddr, err := randV3OnionAddr(r)
if err != nil {
return nil, err
}
opaqueAddrs, err := randOpaqueAddr(r)
if err != nil {
return nil, err
}
return []net.Addr{
tcp4Addr, tcp6Addr, v2OnionAddr, v3OnionAddr, opaqueAddrs,
}, nil
}
// TestChanUpdateChanFlags ensures that converting the ChanUpdateChanFlags and
// ChanUpdateMsgFlags bitfields to a string behaves as expected.
func TestChanUpdateChanFlags(t *testing.T) {
t.Parallel()
testCases := []struct {
flags uint8
expected string
}{
{
flags: 0,
expected: "00000000",
},
{
flags: 1,
expected: "00000001",
},
{
flags: 3,
expected: "00000011",
},
{
flags: 255,
expected: "11111111",
},
}
for _, test := range testCases {
chanFlag := ChanUpdateChanFlags(test.flags)
toStr := chanFlag.String()
if toStr != test.expected {
t.Fatalf("expected %v, got %v",
test.expected, toStr)
}
msgFlag := ChanUpdateMsgFlags(test.flags)
toStr = msgFlag.String()
if toStr != test.expected {
t.Fatalf("expected %v, got %v",
test.expected, toStr)
}
}
}
// TestDecodeUnknownAddressType shows that an unknown address type is currently
// incorrectly dealt with.
func TestDecodeUnknownAddressType(t *testing.T) {
// Add a normal, clearnet address.
tcpAddr := &net.TCPAddr{
IP: net.IP{127, 0, 0, 1},
Port: 8080,
}
// Add an onion address.
onionAddr := &tor.OnionAddr{
OnionService: "abcdefghijklmnop.onion",
Port: 9065,
}
// Now add an address with an unknown type.
var newAddrType addressType = math.MaxUint8
data := make([]byte, 0, 16)
data = append(data, uint8(newAddrType))
opaqueAddrs := &OpaqueAddrs{
Payload: data,
}
buffer := bytes.NewBuffer(make([]byte, 0, MaxMsgBody))
err := WriteNetAddrs(
buffer, []net.Addr{tcpAddr, onionAddr, opaqueAddrs},
)
require.NoError(t, err)
// Now we attempt to parse the bytes and assert that we get an error.
var addrs []net.Addr
err = ReadElement(buffer, &addrs)
require.NoError(t, err)
require.Len(t, addrs, 3)
require.Equal(t, tcpAddr.String(), addrs[0].String())
require.Equal(t, onionAddr.String(), addrs[1].String())
require.Equal(t, hex.EncodeToString(data), addrs[2].String())
}
func TestMaxOutPointIndex(t *testing.T) {
t.Parallel()
op := wire.OutPoint{
Index: math.MaxUint32,
}
var b bytes.Buffer
if err := WriteOutPoint(&b, op); err == nil {
t.Fatalf("write of outPoint should fail, index exceeds 16-bits")
}
}
func TestEmptyMessageUnknownType(t *testing.T) {
t.Parallel()
fakeType := CustomTypeStart - 1
if _, err := makeEmptyMessage(fakeType); err == nil {
t.Fatalf("should not be able to make an empty message of an " +
"unknown type")
}
}
// randCustomRecords generates a random set of custom records for testing.
func randCustomRecords(t *testing.T, r *rand.Rand) CustomRecords {
var (
customRecords = CustomRecords{}
// We'll generate a random number of records, between 1 and 10.
numRecords = r.Intn(9) + 1
)
// For each record, we'll generate a random key and value.
for i := 0; i < numRecords; i++ {
// Keys must be equal to or greater than
// MinCustomRecordsTlvType.
keyOffset := uint64(r.Intn(100))
key := MinCustomRecordsTlvType + keyOffset
// Values are byte slices of any length.
value := make([]byte, r.Intn(100))
_, err := r.Read(value)
require.NoError(t, err)
customRecords[key] = value
}
// Validate the custom records as a sanity check.
err := customRecords.Validate()
require.NoError(t, err)
return customRecords
}
// 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 > MaxMsgBody {
t.Fatalf("msg payload constraint violated: %v > %v",
payloadLen, MaxMsgBody)
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 !assert.Equalf(t, msg, newMsg, "message mismatch") {
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){
MsgStfu: func(v []reflect.Value, r *rand.Rand) {
req := Stfu{}
if _, err := r.Read(req.ChanID[:]); err != nil {
t.Fatalf("unable to generate ChanID: %v", err)
}
// 1/2 chance of being initiator
req.Initiator = r.Intn(2) == 1
// 1/2 chance additional TLV data.
if r.Intn(2) == 0 {
req.ExtraData = []byte{0xfd, 0x00, 0xff, 0x00}
}
v[0] = reflect.ValueOf(req)
},
MsgInit: func(v []reflect.Value, r *rand.Rand) {
req := NewInitMessage(
randRawFeatureVector(r),
randRawFeatureVector(r),
)
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: FundingFlag(uint8(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.HtlcPoint, 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
}
// 1/2 chance empty TLV records.
if r.Intn(2) == 0 {
req.UpfrontShutdownScript, err = randDeliveryAddress(r)
if err != nil {
t.Fatalf("unable to generate delivery address: %v", err)
return
}
req.ChannelType = new(ChannelType)
*req.ChannelType = ChannelType(*randRawFeatureVector(r))
req.LeaseExpiry = new(LeaseExpiry)
*req.LeaseExpiry = LeaseExpiry(1337)
//nolint:lll
req.LocalNonce = someLocalNonce[NonceRecordTypeT](r)
} else {
req.UpfrontShutdownScript = []byte{}
}
// 1/2 chance additional TLV data.
if r.Intn(2) == 0 {
req.ExtraData = []byte{0xfd, 0x00, 0xff, 0x00}
}
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.HtlcPoint, 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
}
// 1/2 chance empty TLV records.
if r.Intn(2) == 0 {
req.UpfrontShutdownScript, err = randDeliveryAddress(r)
if err != nil {
t.Fatalf("unable to generate delivery address: %v", err)
return
}
req.ChannelType = new(ChannelType)
*req.ChannelType = ChannelType(*randRawFeatureVector(r))
req.LeaseExpiry = new(LeaseExpiry)
*req.LeaseExpiry = LeaseExpiry(1337)
//nolint:lll
req.LocalNonce = someLocalNonce[NonceRecordTypeT](r)
} else {
req.UpfrontShutdownScript = []byte{}
}
// 1/2 chance additional TLV data.
if r.Intn(2) == 0 {
req.ExtraData = []byte{0xfd, 0x00, 0xff, 0x00}
}
v[0] = reflect.ValueOf(req)
},
MsgFundingCreated: func(v []reflect.Value, r *rand.Rand) {
req := FundingCreated{
ExtraData: make([]byte, 0),
}
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
var err error
req.CommitSig, err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
// 1/2 chance to attach a partial sig.
if r.Intn(2) == 0 {
req.PartialSig = somePartialSigWithNonce(t, r)
}
v[0] = reflect.ValueOf(req)
},
MsgFundingSigned: func(v []reflect.Value, r *rand.Rand) {
var c [32]byte
_, err := r.Read(c[:])
if err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
req := FundingSigned{
ChanID: ChannelID(c),
ExtraData: make([]byte, 0),
}
req.CommitSig, err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
// 1/2 chance to attach a partial sig.
if r.Intn(2) == 0 {
req.PartialSig = somePartialSigWithNonce(t, r)
}
v[0] = reflect.ValueOf(req)
},
MsgChannelReady: 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 := NewChannelReady(ChannelID(c), pubKey)
if r.Int31()%2 == 0 {
scid := NewShortChanIDFromInt(uint64(r.Int63()))
req.AliasScid = &scid
//nolint:lll
req.NextLocalNonce = someLocalNonce[NonceRecordTypeT](r)
}
v[0] = reflect.ValueOf(*req)
},
MsgShutdown: func(v []reflect.Value, r *rand.Rand) {
var c [32]byte
_, err := r.Read(c[:])
if err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
shutdownAddr, err := randDeliveryAddress(r)
if err != nil {
t.Fatalf("unable to generate delivery "+
"address: %v", err)
return
}
req := Shutdown{
ChannelID: ChannelID(c),
Address: shutdownAddr,
ExtraData: make([]byte, 0),
}
if r.Int31()%2 == 0 {
//nolint:lll
req.ShutdownNonce = someLocalNonce[ShutdownNonceType](r)
}
v[0] = reflect.ValueOf(req)
},
MsgClosingSigned: func(v []reflect.Value, r *rand.Rand) {
req := ClosingSigned{
FeeSatoshis: btcutil.Amount(r.Int63()),
ExtraData: make([]byte, 0),
}
var err error
req.Signature, err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
if _, err := r.Read(req.ChannelID[:]); err != nil {
t.Fatalf("unable to generate chan id: %v", err)
return
}
if r.Int31()%2 == 0 {
req.PartialSig = somePartialSig(t, r)
}
v[0] = reflect.ValueOf(req)
},
MsgDynPropose: func(v []reflect.Value, r *rand.Rand) {
var dp DynPropose
rand.Read(dp.ChanID[:])
if rand.Uint32()%2 == 0 {
v := btcutil.Amount(rand.Uint32())
dp.DustLimit = fn.Some(v)
}
if rand.Uint32()%2 == 0 {
v := MilliSatoshi(rand.Uint32())
dp.MaxValueInFlight = fn.Some(v)
}
if rand.Uint32()%2 == 0 {
v := btcutil.Amount(rand.Uint32())
dp.ChannelReserve = fn.Some(v)
}
if rand.Uint32()%2 == 0 {
v := uint16(rand.Uint32())
dp.CsvDelay = fn.Some(v)
}
if rand.Uint32()%2 == 0 {
v := uint16(rand.Uint32())
dp.MaxAcceptedHTLCs = fn.Some(v)
}
if rand.Uint32()%2 == 0 {
v, _ := btcec.NewPrivateKey()
dp.FundingKey = fn.Some(*v.PubKey())
}
if rand.Uint32()%2 == 0 {
v := ChannelType(*NewRawFeatureVector())
dp.ChannelType = fn.Some(v)
}
if rand.Uint32()%2 == 0 {
v := chainfee.SatPerKWeight(rand.Uint32())
dp.KickoffFeerate = fn.Some(v)
}
v[0] = reflect.ValueOf(dp)
},
MsgDynReject: func(v []reflect.Value, r *rand.Rand) {
var dr DynReject
rand.Read(dr.ChanID[:])
features := NewRawFeatureVector()
if rand.Uint32()%2 == 0 {
features.Set(FeatureBit(DPDustLimitSatoshis))
}
if rand.Uint32()%2 == 0 {
features.Set(
FeatureBit(DPMaxHtlcValueInFlightMsat),
)
}
if rand.Uint32()%2 == 0 {
features.Set(
FeatureBit(DPChannelReserveSatoshis),
)
}
if rand.Uint32()%2 == 0 {
features.Set(FeatureBit(DPToSelfDelay))
}
if rand.Uint32()%2 == 0 {
features.Set(FeatureBit(DPMaxAcceptedHtlcs))
}
if rand.Uint32()%2 == 0 {
features.Set(FeatureBit(DPFundingPubkey))
}
if rand.Uint32()%2 == 0 {
features.Set(FeatureBit(DPChannelType))
}
if rand.Uint32()%2 == 0 {
features.Set(FeatureBit(DPKickoffFeerate))
}
dr.UpdateRejections = *features
v[0] = reflect.ValueOf(dr)
},
MsgDynAck: func(v []reflect.Value, r *rand.Rand) {
var da DynAck
rand.Read(da.ChanID[:])
if rand.Uint32()%2 == 0 {
var nonce Musig2Nonce
rand.Read(nonce[:])
da.LocalNonce = fn.Some(nonce)
}
v[0] = reflect.ValueOf(da)
},
MsgKickoffSig: func(v []reflect.Value, r *rand.Rand) {
ks := KickoffSig{
ExtraData: make([]byte, 0),
}
rand.Read(ks.ChanID[:])
rand.Read(ks.Signature.bytes[:])
v[0] = reflect.ValueOf(ks)
},
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
}
var err error
req.CommitSig, err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
// 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(1019))
if numSigs > 0 {
req.HtlcSigs = make([]Sig, numSigs)
}
for i := 0; i < int(numSigs); i++ {
req.HtlcSigs[i], err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
}
req.CustomRecords = randCustomRecords(t, r)
// 50/50 chance to attach a partial sig.
if r.Int31()%2 == 0 {
req.PartialSig = somePartialSigWithNonce(t, r)
}
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
}
// 50/50 chance to attach a local nonce.
if r.Int31()%2 == 0 {
//nolint:lll
req.LocalNonce = someLocalNonce[NonceRecordTypeT](r)
}
v[0] = reflect.ValueOf(*req)
},
MsgChannelAnnouncement: func(v []reflect.Value, r *rand.Rand) {
var err error
req := ChannelAnnouncement{
ShortChannelID: NewShortChanIDFromInt(uint64(r.Int63())),
Features: randRawFeatureVector(r),
ExtraOpaqueData: make([]byte, 0),
}
req.NodeSig1, err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
req.NodeSig2, err = NewSigFromSignature(testSig)
if err != nil {
t.Fatalf("unable to parse sig: %v", err)
return
}
req.BitcoinSig1, err = NewSigFromSignature(testSig)
if err != nil {