lnrpc+rpcserver: replace ChanPoint w/ OutPoint in Utxo msg

lnrpc/rpc.proto

@@ -669,25 +669,23 @@ service Lightning {
 }
 
 message Utxo {
-	/// The type of address
+    /// The type of address
-	AddressType type = 1 [json_name = "address_type"];
+    AddressType type = 1 [json_name = "address_type"];
 
-	/// The address
+    /// The address
-	string address = 2 [json_name = "address"];
+    string address = 2 [json_name = "address"];
 
-	/// The value of the unspent coin in satoshis
+    /// The value of the unspent coin in satoshis
-	int64 amount_sat = 3 [json_name = "amount_sat"];
+    int64 amount_sat = 3 [json_name = "amount_sat"];
 
-	/// The scriptpubkey in hex
+    /// The scriptpubkey in hex
-	string script_pubkey = 4 [json_name = "script_pubkey"];
+    string script_pubkey = 4 [json_name = "script_pubkey"];
 
-	/// The outpoint in format txid:n
+    /// The outpoint in format txid:n
-	/// Note that this reuses the `ChannelPoint` message but
+    OutPoint outpoint = 5 [json_name = "outpoint"];
-	/// is not actually a channel related outpoint, of course
-	ChannelPoint outpoint = 5 [json_name = "outpoint"];
 
-	/// The number of confirmations for the Utxo
+    /// The number of confirmations for the Utxo
-	int64 confirmations = 6 [json_name = "confirmations"];
+    int64 confirmations = 6 [json_name = "confirmations"];
 }
 
 message Transaction {
@@ -800,6 +798,17 @@ message ChannelPoint {
     uint32 output_index = 3 [json_name = "output_index"];
 }
 
+message OutPoint {
+    /// Raw bytes representing the transaction id.
+    bytes txid_bytes = 1 [json_name = "txid_bytes"];
+
+    /// Reversed, hex-encoded string representing the transaction id.
+    string txid_str = 2 [json_name = "txid_str"];
+
+    /// The index of the output on the transaction.
+    uint32 output_index = 3 [json_name = "output_index"];
+}
+
 message LightningAddress {
     /// The identity pubkey of the Lightning node
     string pubkey = 1 [json_name = "pubkey"];

lnrpc/rpc.swagger.json

@@ -2435,6 +2435,25 @@
         }
       }
     },
+    "lnrpcOutPoint": {
+      "type": "object",
+      "properties": {
+        "txid_bytes": {
+          "type": "string",
+          "format": "byte",
+          "description": "/ Raw bytes representing the transaction id."
+        },
+        "txid_str": {
+          "type": "string",
+          "description": "/ Reversed, hex-encoded string representing the transaction id."
+        },
+        "output_index": {
+          "type": "integer",
+          "format": "int64",
+          "description": "/ The index of the output on the transaction."
+        }
+      }
+    },
     "lnrpcPayReq": {
       "type": "object",
       "properties": {
@@ -3014,8 +3033,8 @@
           "title": "/ The scriptpubkey in hex"
         },
         "outpoint": {
-          "$ref": "#/definitions/lnrpcChannelPoint",
+          "$ref": "#/definitions/lnrpcOutPoint",
-          "title": "/ The outpoint in format txid:n\n/ Note that this reuses the `ChannelPoint` message but\n/ is not actually a channel related outpoint, of course"
+          "title": "/ The outpoint in format txid:n"
         },
         "confirmations": {
           "type": "string",

rpcserver.go

@@ -717,10 +717,9 @@ func (r *rpcServer) ListUnspent(ctx context.Context,
 
 		// Now that we know we have a proper mapping to an address,
 		// we'll convert the regular outpoint to an lnrpc variant.
-		outpoint := &lnrpc.ChannelPoint{
+		outpoint := &lnrpc.OutPoint{
-			FundingTxid: &lnrpc.ChannelPoint_FundingTxidStr{
+			TxidBytes:   utxo.OutPoint.Hash[:],
-				FundingTxidStr: utxo.OutPoint.Hash.String(),
+			TxidStr:     utxo.OutPoint.Hash.String(),
-			},
 			OutputIndex: utxo.OutPoint.Index,
 		}