introduce SwMatchError exception
This allows callers further up the stack to catch the exception and
interpret it in some way (like decoding the number of remaining tries
in case of authentication errors)
Change-Id: Ia59962978745aef7038f750fa23f8dfc820645f4
diff --git a/pySim/exceptions.py b/pySim/exceptions.py
index c0cf1e7..5d30f76 100644
--- a/pySim/exceptions.py
+++ b/pySim/exceptions.py
@@ -5,6 +5,7 @@
#
# Copyright (C) 2009-2010 Sylvain Munaut <tnt@246tNt.com>
+# Copyright (C) 2021 Harald Welte <laforge@osmocom.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -36,3 +37,12 @@
class ReaderError(Exception):
pass
+
+class SwMatchError(Exception):
+ """Raised when an operation specifies an expected SW but the actual SW from
+ the card doesn't match."""
+ def __init__(self, sw_actual, sw_expected):
+ self.sw_actual = sw_actual
+ self.sw_expected = sw_expected
+ def __str__(self):
+ return "SW match failed! Expected %s and got %s." % (self.sw_expected, self.sw_actual)