dexter has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/31288 )

Change subject: cards: sysmo-isim-sja2: make sure an ADF is present in EF.DIR before selecting it ......................................................................

cards: sysmo-isim-sja2: make sure an ADF is present in EF.DIR before selecting it

sysmo-isim-sja2 may come in different configurations, so some may intentionally lack ADF.USIM or ADF.ISIM. Since select_adf_by_aid() may raise an exception when selecting a non existent file we should make sure that the ADF we intend to select is indeed present. A reliable way to do this is to check if the application is registered in EF.DIR.

Change-Id: Icf6f6b36f246398af408ec432d493fe3f22963dd --- M pySim/cards.py 1 file changed, 18 insertions(+), 7 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/88/31288/1

diff --git a/pySim/cards.py b/pySim/cards.py index 4dc20a4..b48a80c 100644 --- a/pySim/cards.py +++ b/pySim/cards.py @@ -307,6 +307,15 @@ return aid_known return None

+ def adf_present(self, adf="usim") -> bool: + """Check if the AID of the specified ADF is present in EF.DIR (call read_aids before use)""" + aid = self._get_aid(adf) + if aid: + aid_full = self._complete_aid(aid) + if aid_full: + return True + return False + def select_adf_by_aid(self, adf="usim"): """Select ADF.U/ISIM in the Card using its full AID""" if is_hex(adf): @@ -1437,6 +1446,9 @@ def program(self, p): self.verify_adm(h2b(p['pin_adm']))

+ # Populate AIDs + self.read_aids() + # This type of card does not allow to reprogram the ICCID. # Reprogramming the ICCID would mess up the card os software # license management, so the ICCID must be kept at its factory @@ -1514,9 +1526,6 @@ if sw != '9000': print("Programming ACC failed with code %s" % sw)

- # Populate AIDs - self.read_aids() - # update EF-SIM_AUTH_KEY (and EF-USIM_AUTH_KEY_2G, which is # hard linked to EF-USIM_AUTH_KEY) self._scc.select_path(['3f00']) @@ -1527,8 +1536,9 @@ self._scc.update_binary('6f20', p['opc'], 17)

# update EF-USIM_AUTH_KEY in ADF.ISIM - data, sw = self.select_adf_by_aid(adf="isim") - if sw == '9000': + if self.adf_present("isim"): + self.select_adf_by_aid(adf="isim") + if p.get('ki'): self._scc.update_binary('af20', p['ki'], 1) if p.get('opc'): @@ -1575,8 +1585,9 @@ if sw != '9000': print("Programming IMPU failed with code %s" % sw)

- data, sw = self.select_adf_by_aid(adf="usim") - if sw == '9000': + if self.adf_present("usim"): + self.select_adf_by_aid(adf="usim") + # EF.AD in ADF.USIM if (p.get('mcc') and p.get('mnc')) or p.get('opmode'): if p.get('mcc') and p.get('mnc'):