X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;ds=sidebyside;f=lightning%2Fsrc%2Fln%2Fmsgs.rs;h=2557454b4623567302f4f7f380cee305c04e05ec;hb=1016e1f605ff03ed14ed875e7cd4f567ae15c96a;hp=38c832564c4b88df8f8a26727bd1668f970f0ec8;hpb=64a800720e63c17910a524ab72dd9dedc05d3345;p=rust-lightning

diff --git a/lightning/src/ln/msgs.rs b/lightning/src/ln/msgs.rs
index 38c83256..2557454b 100644
--- a/lightning/src/ln/msgs.rs
+++ b/lightning/src/ln/msgs.rs
@@ -267,6 +267,12 @@ pub struct FundingCreated {
 	pub funding_output_index: u16,
 	/// The signature of the channel initiator (funder) on the initial commitment transaction
 	pub signature: Signature,
+	#[cfg(taproot)]
+	/// The partial signature of the channel initiator (funder)
+	pub partial_signature_with_nonce: Option<PartialSignatureWithNonce>,
+	#[cfg(taproot)]
+	/// Next nonce the channel acceptor should use to finalize the funding output signature
+	pub next_local_nonce: Option<musig2::types::PublicNonce>
 }
 
 /// A [`funding_signed`] message to be sent to or received from a peer.
@@ -278,6 +284,9 @@ pub struct FundingSigned {
 	pub channel_id: [u8; 32],
 	/// The signature of the channel acceptor (fundee) on the initial commitment transaction
 	pub signature: Signature,
+	#[cfg(taproot)]
+	/// The partial signature of the channel acceptor (fundee)
+	pub partial_signature_with_nonce: Option<PartialSignatureWithNonce>,
 }
 
 /// A [`channel_ready`] message to be sent to or received from a peer.
@@ -417,6 +426,9 @@ pub struct CommitmentSigned {
 	pub signature: Signature,
 	/// Signatures on the HTLC transactions
 	pub htlc_signatures: Vec<Signature>,
+	#[cfg(taproot)]
+	/// The partial Taproot signature on the commitment transaction
+	pub partial_signature_with_nonce: Option<PartialSignatureWithNonce>,
 }
 
 /// A [`revoke_and_ack`] message to be sent to or received from a peer.
@@ -430,6 +442,9 @@ pub struct RevokeAndACK {
 	pub per_commitment_secret: [u8; 32],
 	/// The next sender-broadcast commitment transaction's per-commitment point
 	pub next_per_commitment_point: PublicKey,
+	#[cfg(taproot)]
+	/// Musig nonce the recipient should use in their next commitment signature message
+	pub next_local_nonce: Option<musig2::types::PublicNonce>
 }
 
 /// An [`update_fee`] message to be sent to or received from a peer
@@ -1393,30 +1408,60 @@ impl_writeable!(ClosingSignedFeeRange, {
 	max_fee_satoshis
 });
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(CommitmentSigned, {
 	channel_id,
 	signature,
 	htlc_signatures
 }, {});
 
+#[cfg(taproot)]
+impl_writeable_msg!(CommitmentSigned, {
+	channel_id,
+	signature,
+	htlc_signatures
+}, {
+	(2, partial_signature_with_nonce, option)
+});
+
 impl_writeable!(DecodedOnionErrorPacket, {
 	hmac,
 	failuremsg,
 	pad
 });
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(FundingCreated, {
 	temporary_channel_id,
 	funding_txid,
 	funding_output_index,
 	signature
 }, {});
+#[cfg(taproot)]
+impl_writeable_msg!(FundingCreated, {
+	temporary_channel_id,
+	funding_txid,
+	funding_output_index,
+	signature
+}, {
+	(2, partial_signature_with_nonce, option),
+	(4, next_local_nonce, option)
+});
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(FundingSigned, {
 	channel_id,
 	signature
 }, {});
 
+#[cfg(taproot)]
+impl_writeable_msg!(FundingSigned, {
+	channel_id,
+	signature
+}, {
+	(2, partial_signature_with_nonce, option)
+});
+
 impl_writeable_msg!(ChannelReady, {
 	channel_id,
 	next_per_commitment_point,
@@ -1476,12 +1521,22 @@ impl_writeable_msg!(OpenChannel, {
 	(1, channel_type, option),
 });
 
+#[cfg(not(taproot))]
 impl_writeable_msg!(RevokeAndACK, {
 	channel_id,
 	per_commitment_secret,
 	next_per_commitment_point
 }, {});
 
+#[cfg(taproot)]
+impl_writeable_msg!(RevokeAndACK, {
+	channel_id,
+	per_commitment_secret,
+	next_per_commitment_point
+}, {
+	(4, next_local_nonce, option)
+});
+
 impl_writeable_msg!(Shutdown, {
 	channel_id,
 	scriptpubkey
@@ -2501,6 +2556,10 @@ mod tests {
 			funding_txid: Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(),
 			funding_output_index: 255,
 			signature: sig_1,
+			#[cfg(taproot)]
+			partial_signature_with_nonce: None,
+			#[cfg(taproot)]
+			next_local_nonce: None,
 		};
 		let encoded_value = funding_created.encode();
 		let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202026e96fe9f8b0ddcd729ba03cfafa5a27b050b39d354dd980814268dfa9a44d4c200ffd977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
@@ -2515,6 +2574,8 @@ mod tests {
 		let funding_signed = msgs::FundingSigned {
 			channel_id: [2; 32],
 			signature: sig_1,
+			#[cfg(taproot)]
+			partial_signature_with_nonce: None,
 		};
 		let encoded_value = funding_signed.encode();
 		let target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
@@ -2678,6 +2739,8 @@ mod tests {
 			channel_id: [2; 32],
 			signature: sig_1,
 			htlc_signatures: if htlcs { vec![sig_2, sig_3, sig_4] } else { Vec::new() },
+			#[cfg(taproot)]
+			partial_signature_with_nonce: None,
 		};
 		let encoded_value = commitment_signed.encode();
 		let mut target_value = hex::decode("0202020202020202020202020202020202020202020202020202020202020202d977cb9b53d93a6ff64bb5f1e158b4094b66e798fb12911168a3ccdf80a83096340a6a95da0ae8d9f776528eecdbb747eb6b545495a4319ed5378e35b21e073a").unwrap();
@@ -2703,6 +2766,8 @@ mod tests {
 			channel_id: [2; 32],
 			per_commitment_secret: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
 			next_per_commitment_point: pubkey_1,
+			#[cfg(taproot)]
+			next_local_nonce: None,
 		};
 		let encoded_value = raa.encode();
 		let target_value = hex::decode("02020202020202020202020202020202020202020202020202020202020202020101010101010101010101010101010101010101010101010101010101010101031b84c5567b126440995d3ed5aaba0565d71e1834604819ff9c17f5e9d5dd078f").unwrap();