utils: tolerate uninitialized fields in dec_addr_tlv
TLV fields holding an address may still be uninitialized and hence
filled with 0xff bytes. Lets interpret those fields in the same way as
we interpret empty fields.
Related: OS#6094
Change-Id: Idc0a92ea88756266381c8da2ad62de061a8ea7a1
diff --git a/pySim/utils.py b/pySim/utils.py
index 735468e..1541e2e 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -771,6 +771,10 @@
if tlv[1] == 0:
continue
+ # Uninitialized field
+ if all([v == 0xff for v in tlv[2]]):
+ continue
+
# First byte in the value has the address type
addr_type = tlv[2][0]
# TODO: Support parsing of IPv6