feat(core): add ThpInvalidDataError

[no changelog]

core/src/trezor/wire/thp/__init__.py

@@ -11,6 +11,10 @@ class ThpDecryptionError(ThpError):
     pass
 
 
+class ThpInvalidDataError(ThpError):
+    pass
+
+
 class ThpUnallocatedSessionError(ThpError):
     def __init__(self, session_id: int):
         self.session_id = session_id
@@ -26,6 +30,7 @@ class ThpErrorType(IntEnum):
     TRANSPORT_BUSY = 1
     UNALLOCATED_CHANNEL = 2
     DECRYPTION_FAILED = 3
+    INVALID_DATA = 4
 
 
 class ChannelState(IntEnum):

core/src/trezor/wire/thp/received_message_handler.py

@@ -27,6 +27,7 @@
     ThpDecryptionError,
     ThpError,
     ThpErrorType,
+    ThpInvalidDataError,
     ThpUnallocatedSessionError,
 )
 from . import alternating_bit_protocol as ABP
@@ -115,6 +116,10 @@ async def handle_received_message(
         await ctx.write_error(ThpErrorType.DECRYPTION_FAILED)
         ctx.clear()
         print(e)
+    except ThpInvalidDataError as e:
+        await ctx.write_error(ThpErrorType.INVALID_DATA)
+        ctx.clear()
+        print(e)
     if __debug__:
         log.debug(__name__, "handle_received_message - end")
 
@@ -282,7 +287,9 @@ async def _handle_state_TH2(ctx: Channel, message_length: int, ctrl_byte: int) -
         assert ThpHandshakeCompletionReqNoisePayload.is_type_of(noise_payload)
     enabled_methods = thp_messages.get_enabled_pairing_methods(ctx.iface)
     for method in noise_payload.pairing_methods:
-        if method in enabled_methods and method not in ctx.selected_pairing_methods:
+        if method not in enabled_methods:
+            raise ThpInvalidDataError()
+        if method not in ctx.selected_pairing_methods:
             ctx.selected_pairing_methods.append(method)
     if __debug__:
         log.debug(