Merge pull request #8095 from carlaKC/7882-mcblinding

missioncontrol: add invalid onion blinding handling for blinded paths

lnrpc/lightning.proto

@@ -4598,6 +4598,7 @@ message Failure {
         EXPIRY_TOO_FAR = 22;
         MPP_TIMEOUT = 23;
         INVALID_ONION_PAYLOAD = 24;
+        INVALID_ONION_BLINDING = 25;
 
         /*
         An internal error occurred.

lnrpc/lightning.swagger.json

@@ -2849,6 +2849,7 @@
         "EXPIRY_TOO_FAR",
         "MPP_TIMEOUT",
         "INVALID_ONION_PAYLOAD",
+        "INVALID_ONION_BLINDING",
         "INTERNAL_FAILURE",
         "UNKNOWN_FAILURE",
         "UNREADABLE_FAILURE"

lnrpc/routerrpc/router.swagger.json

@@ -577,6 +577,7 @@
         "EXPIRY_TOO_FAR",
         "MPP_TIMEOUT",
         "INVALID_ONION_PAYLOAD",
+        "INVALID_ONION_BLINDING",
         "INTERNAL_FAILURE",
         "UNKNOWN_FAILURE",
         "UNREADABLE_FAILURE"

lnrpc/routerrpc/router_backend.go

@@ -1495,6 +1495,10 @@ func marshallWireError(msg lnwire.FailureMessage,
 	case *lnwire.InvalidOnionPayload:
 		response.Code = lnrpc.Failure_INVALID_ONION_PAYLOAD
 
+	case *lnwire.FailInvalidBlinding:
+		response.Code = lnrpc.Failure_INVALID_ONION_BLINDING
+		response.OnionSha_256 = onionErr.OnionSHA256[:]
+
 	case nil:
 		response.Code = lnrpc.Failure_UNKNOWN_FAILURE