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sysmoISIM-SJA2: Add support for programming EF.ePDGSelection (ePDG Selection Information)

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If the EF.ePDGSelection is present, it is populated with a single entry with PLMN 1 set
to Home PLMN of USIM, ePDG FQDN format set to Operator Identifier FQDN and ePDG Priority value
set to 1.

Change-Id: I92f3f813afa41ae497ebc0dc2ca73da810f82364
This commit is contained in:
Supreeth Herle
2020-03-24 13:15:37 +01:00
committed by herlesupreeth
parent 3a261d31d5
commit f964df4eb5
2 changed files with 34 additions and 0 deletions
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13
pySim-prog.py
View File

@@ -150,6 +150,9 @@ def parse_options():
parser.add_option("--epdgid", dest="epdgid", parser.add_option("--epdgid", dest="epdgid",
help="Set Home Evolved Packet Data Gateway (ePDG) Identifier. (Only FQDN format supported)", help="Set Home Evolved Packet Data Gateway (ePDG) Identifier. (Only FQDN format supported)",
) )
parser.add_option("--epdgSelection", dest="epdgSelection",
help="Set PLMN for ePDG Selection Information. (Only Operator Identifier FQDN format supported)",
)
parser.add_option("--read-imsi", dest="read_imsi", action="store_true", parser.add_option("--read-imsi", dest="read_imsi", action="store_true",
help="Read the IMSI from the CARD", default=False help="Read the IMSI from the CARD", default=False
) )
@@ -433,6 +436,15 @@ def gen_parameters(opts):
pin_adm = sanitize_pin_adm(opts) pin_adm = sanitize_pin_adm(opts)
# ePDG Selection Information
if opts.epdgSelection:
if len(opts.epdgSelection) < 5 or len(opts.epdgSelection) > 6:
raise ValueError('ePDG Selection Information is not valid')
epdg_mcc = opts.epdgSelection[:3]
epdg_mnc = opts.epdgSelection[3:]
if not epdg_mcc.isdigit() or not epdg_mnc.isdigit():
raise ValueError('PLMN for ePDG Selection must only contain decimal digits')
# Return that # Return that
return { return {
'name' : opts.name, 'name' : opts.name,
@@ -447,6 +459,7 @@ def gen_parameters(opts):
'pin_adm' : pin_adm, 'pin_adm' : pin_adm,
'msisdn' : opts.msisdn, 'msisdn' : opts.msisdn,
'epdgid' : opts.epdgid, 'epdgid' : opts.epdgid,
'epdgSelection' : opts.epdgSelection,
} }

21
pySim/cards.py
View File

@@ -284,6 +284,16 @@ class UsimCard(Card):
else: else:
return (None, sw) return (None, sw)
def update_ePDGSelection(self, mcc, mnc):
(res, sw) = self._scc.read_binary(EF_USIM_ADF_map['ePDGSelection'], length=None, offset=0)
if sw == '9000' and (len(mcc) == 0 or len(mnc) == 0):
# Reset contents
# 80 - Tag value
(res, sw) = self._scc.update_binary(EF_USIM_ADF_map['ePDGSelection'], rpad('', len(res)))
elif sw == '9000':
(res, sw) = self._scc.update_binary(EF_USIM_ADF_map['ePDGSelection'], enc_ePDGSelection(res, mcc, mnc))
return sw
def read_ust(self): def read_ust(self):
(res, sw) = self._scc.read_binary(EF_USIM_ADF_map['UST']) (res, sw) = self._scc.read_binary(EF_USIM_ADF_map['UST'])
if sw == '9000': if sw == '9000':
@@ -1195,6 +1205,17 @@ class SysmoISIMSJA2(UsimCard):
if sw != '9000': if sw != '9000':
print("Programming ePDGId failed with code %s"%sw) print("Programming ePDGId failed with code %s"%sw)
# update EF.ePDGSelection in ADF.USIM
if self.file_exists(EF_USIM_ADF_map['ePDGSelection']):
if p.get('epdgSelection'):
epdg_plmn = p['epdgSelection']
sw = self.update_ePDGSelection(epdg_plmn[:3], epdg_plmn[3:])
else:
sw = self.update_ePDGSelection("", "")
if sw != '9000':
print("Programming ePDGSelection failed with code %s"%sw)
return return