Updated Commit Revocation

lnwire/commit_revocation.go

@@ -11,16 +11,11 @@ type CommitRevocation struct {
 	// We can use a different data type for this if necessary...
 	ChannelID uint64
 
-	// Height of the commitment
-	// You should have the most recent commitment height stored locally
-	// This should be validated!
-	// This is used for shachain.
-	// Each party increments their own CommitmentHeight, they can differ for
-	// each part of the Commitment.
-	CommitmentHeight uint64
-
 	// Revocation to use
 	RevocationProof [20]byte
+
+	//Next revocation to use
+	NextRevocationHash [20]byte
 }
 
 func (c *CommitRevocation) Decode(r io.Reader, pver uint32) error {
@@ -29,8 +24,8 @@ func (c *CommitRevocation) Decode(r io.Reader, pver uint32) error {
 	// RevocationProof(20)
 	err := readElements(r,
 		&c.ChannelID,
-		&c.CommitmentHeight,
 		&c.RevocationProof,
+		&c.NextRevocationHash,
 	)
 	if err != nil {
 		return err
@@ -49,8 +44,8 @@ func NewCommitRevocation() *CommitRevocation {
 func (c *CommitRevocation) Encode(w io.Writer, pver uint32) error {
 	err := writeElements(w,
 		c.ChannelID,
-		c.CommitmentHeight,
 		c.RevocationProof,
+		c.NextRevocationHash,
 	)
 	if err != nil {
 		return err
@@ -64,7 +59,7 @@ func (c *CommitRevocation) Command() uint32 {
 }
 
 func (c *CommitRevocation) MaxPayloadLength(uint32) uint32 {
-	return 36
+	return 48
 }
 
 // Makes sure the struct data is valid (e.g. no negatives or invalid pkscripts)
@@ -76,7 +71,7 @@ func (c *CommitRevocation) Validate() error {
 func (c *CommitRevocation) String() string {
 	return fmt.Sprintf("\n--- Begin CommitRevocation ---\n") +
 		fmt.Sprintf("ChannelID:\t\t%d\n", c.ChannelID) +
-		fmt.Sprintf("CommitmentHeight:\t%d\n", c.CommitmentHeight) +
 		fmt.Sprintf("RevocationProof:\t%x\n", c.RevocationProof) +
+		fmt.Sprintf("NextRevocationHash:\t%x\n", c.NextRevocationHash) +
 		fmt.Sprintf("--- End CommitRevocation ---\n")
 }

lnwire/commit_revocation_test.go

@@ -7,14 +7,15 @@ import (
 var (
 	// Need to to do this here
 	_ = copy(revocationHash[:], revocationHashBytes)
+	_ = copy(nextHop[:], nextHopBytes)
 
 	commitRevocation = &CommitRevocation{
 		ChannelID:          uint64(12345678),
-		CommitmentHeight: uint64(12345),
 		RevocationProof:    revocationHash, // technically it's not a hash... fix later
+		NextRevocationHash: nextHop,        // technically it's not a hash... fix later
 	}
-	commitRevocationSerializedString  = "0000000000bc614e00000000000030394132b6b48371f7b022a16eacb9b2b0ebee134d41"
+	commitRevocationSerializedString  = "0000000000bc614e4132b6b48371f7b022a16eacb9b2b0ebee134d4194a9ded5a30fc5944cb1e2cbcd980f30616a1440"
-	commitRevocationSerializedMessage = "0709110b000007da000000240000000000bc614e00000000000030394132b6b48371f7b022a16eacb9b2b0ebee134d41"
+	commitRevocationSerializedMessage = "0709110b000007da000000300000000000bc614e4132b6b48371f7b022a16eacb9b2b0ebee134d4194a9ded5a30fc5944cb1e2cbcd980f30616a1440"
 )
 
 func TestCommitRevocationEncodeDecode(t *testing.T) {

lnwire/commit_signature_test.go

@@ -12,8 +12,8 @@ var (
 	commitSignature = &CommitSignature{
 		ChannelID:             uint64(12345678),
 		CommitmentHeight:      uint64(12345),
-		LastCommittedKeyAlice: uint64(12345),
+		LastCommittedKeyAlice: HTLCKey(12345),
-		LastCommittedKeyBob:   uint64(54321),
+		LastCommittedKeyBob:   HTLCKey(54321),
 		RevocationHash:        revocationHash,
 		Fee:                   btcutil.Amount(10000),
 		CommitSig:             commitSig,

lnwire/message.go

@@ -9,20 +9,6 @@ import (
 	"github.com/btcsuite/btcd/wire"
 )
 
-//  message type identifyer bytes
-const (
-	MSGID_FUNDREQUEST  = 0x30
-	MSGID_FUNDRESPONSE = 0x31
-
-	MSGID_CLOSEREQUEST  = 0x40
-	MSGID_CLOSERESPONSE = 0x41
-
-	MSGID_TEXTCHAT = 0x70
-
-	MSGID_FWDMSG     = 0x20
-	MSGID_FWDAUTHREQ = 0x21
-)
-
 // 4-byte network + 4-byte message id + payload-length 4-byte
 const MessageHeaderSize = 12