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utils.py: Add missing dec_plmn function. 

This function is being used e.g. for ADF.USIM/EF.FPLMN entries.

The EF_PLMNsel class also already uses a function by this name, we just
haven't had any actual implementation around.

Change-Id: Iacb45c90bb6491ebb89a477a85ef1f3129b38788
This commit is contained in:
Harald Welte 2021-04-07 00:30:10 +02:00 committed by laforge
parent f431189a9e
commit d7a7e17a48
1 changed files with 6 additions and 0 deletions
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6
pySim/utils.py
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@ -137,6 +137,12 @@ def enc_plmn(mcc, mnc):
mnc += "F" # pad to 3 digits if needed
return (mcc[1] + mcc[0]) + (mnc[2] + mcc[2]) + (mnc[1] + mnc[0])
def dec_plmn(threehexbytes:Hexstr) -> dict:
res = {'mcc': 0, 'mnc': 0 }
res['mcc'] = dec_mcc_from_plmn(threehexbytes)
res['mnc'] = dec_mnc_from_plmn(threehexbytes)
return res
def dec_spn(ef):
byte1 = int(ef[0:2])
hplmn_disp = (byte1&0x01 == 0x01)