From 7714a23058fcf1fbffa1208fb02f854947f0617f Mon Sep 17 00:00:00 2001
From: Uwe Hermann <uwe@hermann-uwe.de>
Date: Fri, 29 Nov 2019 19:47:35 +0100
Subject: modbus: Ignore unknown/unsupported types.

Without this, e.g. the recently added 'IDLE' ptype of the UART decoder
would cause issues.
---
 decoders/modbus/pd.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'decoders/modbus')

diff --git a/decoders/modbus/pd.py b/decoders/modbus/pd.py
index cc42721..1d012e4 100644
--- a/decoders/modbus/pd.py
+++ b/decoders/modbus/pd.py
@@ -929,6 +929,10 @@ class Decoder(srd.Decoder):
     def decode(self, ss, es, data):
         ptype, rxtx, pdata = data
 
+        # Ignore unknown/unsupported ptypes.
+        if ptype not in ('STARTBIT', 'DATA', 'STOPBIT'):
+            return
+
         # Decide what ADU(s) we need this packet to go to.
         # Note that it's possible to go to both ADUs.
         if rxtx_channels[rxtx] == self.options['scchannel']:
-- 
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