__init__: also fetch response bytes for USIMs automatically
The method send_apdu() first transmits the APDU in the cards direction.
The card may indicate that there is a response available by responding
with SW1=9F, where SW2 is the number of bytes. send_apdu() will then
craft a get-response APDU to pickup the response bytes. This mechanism
works fine for SIM, but USIM uses SW1=61 to indicate the availability
of a response, so lets also sense on SW1=61 to support USIMs as well.
- Also check on SW1=61 to see if a response is available
Change-Id: Ied7fb78873a7c4109de471c7a5e9c3701ba0c7d5
Related: SYS#4245
diff --git a/pySim/transport/__init__.py b/pySim/transport/__init__.py
index 0a71117..9cd23d0 100644
--- a/pySim/transport/__init__.py
+++ b/pySim/transport/__init__.py
@@ -67,7 +67,13 @@
"""
data, sw = self.send_apdu_raw(pdu)
- if (sw is not None) and (sw[0:2] == '9f'):
+ # When whe have sent the first APDU, the SW may indicate that there are response bytes
+ # available. There are two SWs commonly used for this 9fxx (sim) and 61xx (usim), where
+ # xx is the number of response bytes available.
+ # See also:
+ # SW1=9F: 3GPP TS 51.011 9.4.1, Responses to commands which are correctly executed
+ # SW1=61: ISO/IEC 7816-4, Table 5 — General meaning of the interindustry values of SW1-SW2
+ if (sw is not None) and ((sw[0:2] == '9f') or (sw[0:2] == '61')):
pdu_gr = pdu[0:2] + 'c00000' + sw[2:4]
data, sw = self.send_apdu_raw(pdu_gr)