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pySim/transport: fix GET RESPONSE behaviour

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The current behavior we implement in the method __send_apdu_T0 is
incomplete. Some details discussed in ETSI TS 102 221,
section 7.3.1.1.4, clause 4 seem to be not fully implemented. We
may also end up sending a GET RESPONSE in other APDU cases than
case 4 (the only case that uses the GET RESPONSE command).

Related: OS#6970
Change-Id: I26f0566af0cdd61dcc97f5f502479dc76adc37cc
This commit is contained in:
Philipp Maier
2026-03-09 16:18:12 +01:00
parent f2567de387
commit d7f4d20471
2 changed files with 55 additions and 12 deletions
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14
tests/pySim-shell_test/apdu/test_apdu.script
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@@ -7,10 +7,24 @@ set apdu_strict true
# No command data field, No response data field present
apdu 00700001 --expect-sw 9000 --expect-response-regex '^$'
# Case #1: (verify pin)
# This command returns the number of remaining authentication attempts in the
# form of a status that has the form 63cX, where X is the number of remaining
# attempts. Such a status word can be easily confused with the response to a
# case #4 APDU. This test checks if the transport layer correctly distinguishes
# the between APDU case #1 and APDU case #4.
apdu 0020000A --expect-sw 63c? --expect-response-regex '^$'
# Case #2: (status)
# No command data field, Response data field present
apdu 80F2000000 --expect-sw 9000 --expect-response-regex '^[a-fA-F0-9]+$'
# Case #2: (verify pin)
# (see also above). This test checks if the transport layer is also able to
# distinguish correctly between APDU case #2 (with zero length response) and
# APDU case #4.
apdu 0020000A00 --expect-sw 63c? --expect-response-regex '^$'
# Case #3: (terminal capability)
# Command data field present, No response data field
apdu 80AA000005a903830180 --expect-sw 9000 --expect-response-regex '^$'