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ts_51_011: Proper decode of EF.SMSP

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Full decode of the SSM Parameters File

Change-Id: Iac5bb87ed3350978dc8b207f052510fdba2e4883
This commit is contained in:
Harald Welte
2022-02-13 10:54:58 +01:00
parent 3bb516b2b1
commit bc0e209a9f
2 changed files with 62 additions and 1 deletions
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34
pySim/ts_51_011.py
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@@ -402,8 +402,42 @@ class EF_MSISDN(LinFixedEF):
# TS 51.011 Section 10.5.6
class EF_SMSP(LinFixedEF):
class ValidityPeriodAdapter(Adapter):
def _decode(self, obj, context, path):
if obj <= 143:
return obj + 1 * 5
elif obj <= 167:
return 12 * 60 + ((obj - 143) * 30)
elif obj <= 196:
return (obj - 166) * (24 * 60)
elif obj <= 255:
return (obj - 192) * (7 * 24 * 60)
else:
raise ValueError
def _encode(self, obj, context, path):
if obj <= 12*60:
return obj/5 - 1
elif obj <= 24*60:
return 143 + ((obj - (12 * 60)) / 30)
elif obj <= 30 * 24 * 60:
return 166 + (obj / (24 * 60))
elif obj <= 63 * 7 * 24 * 60:
return 192 + (obj / (7 * 24 * 60))
else:
raise ValueError
def __init__(self, fid='6f42', sfid=None, name='EF.SMSP', desc='Short message service parameters', **kwargs):
super().__init__(fid, sfid=sfid, name=name, desc=desc, rec_len={28, None}, **kwargs)
ScAddr = Struct('length'/Int8ub, 'ton_npi'/TonNpi, 'call_number'/BcdAdapter(Rpad(Bytes(10))))
self._construct = Struct('alpha_id'/COptional(GsmStringAdapter(Rpad(Bytes(this._.total_len-28)))),
'parameter_indicators'/InvertAdapter(FlagsEnum(Byte, tp_dest_addr=1, tp_sc_addr=2,
tp_pid=3, tp_dcs=4, tp_vp=5)),
'tp_dest_addr'/ScAddr,
'tp_sc_addr'/ScAddr,
'tp_pid'/HexAdapter(Bytes(1)),
'tp_dcs'/HexAdapter(Bytes(1)),
'tp_vp_minutes'/EF_SMSP.ValidityPeriodAdapter(Byte))
# TS 51.011 Section 10.5.7
class EF_SMSS(TransparentEF):