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support UCS-2 characters in EF.MMSUP, EF.ADN, EF.SPN, EF.PNN, EF.ECC

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Now that we have support for the UCS-2 encoding as per TS 102 221 Annex A,
we can start to make use of it from various file constructs.

As some specs say "Either 7-bit GSM or UCS-2" we also introduce
a related automatic GsmOrUcs2Adapter and GsmOrUcs2String class.

Change-Id: I4eb8aea0a13260a143e2c60fca73c3c4312fd3b2
This commit is contained in:
Harald Welte
2023-12-27 22:04:50 +01:00
parent f6fceb8684
commit 6e6caa8b4a
3 changed files with 41 additions and 4 deletions
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6
pySim/ts_51_011.py
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@@ -145,7 +145,7 @@ class EF_ADN(LinFixedEF):
def __init__(self, fid='6f3a', sfid=None, name='EF.ADN', desc='Abbreviated Dialing Numbers', ext=1, **kwargs):
super().__init__(fid, sfid=sfid, name=name, desc=desc, rec_len=(14, 30), **kwargs)
ext_name = 'ext%u_record_id' % ext
self._construct = Struct('alpha_id'/COptional(GsmStringAdapter(Rpad(Bytes(this._.total_len-14)), codec='ascii')),
self._construct = Struct('alpha_id'/COptional(GsmOrUcs2Adapter(Rpad(Bytes(this._.total_len-14)))),
'len_of_bcd'/Int8ub,
'ton_npi'/TonNpi,
'dialing_nr'/ExtendedBcdAdapter(BcdAdapter(Rpad(Bytes(10)))),
@@ -514,7 +514,7 @@ class EF_SPN(TransparentEF):
'hide_in_oplmn'/Flag,
'show_in_hplmn'/Flag,
# Bytes 2..17
'spn'/Bytewise(GsmString(16))
'spn'/Bytewise(GsmOrUcs2String(16))
)
# TS 51.011 Section 10.3.13
@@ -929,7 +929,7 @@ class EF_MMSICP(TransparentEF):
# TS 51.011 Section 10.3.54
class EF_MMSUP(LinFixedEF):
class MMS_UserPref_ProfileName(BER_TLV_IE, tag=0x81):
pass
_construct = GsmOrUcs2Adapter(GreedyBytes)
class MMS_UserPref_Info(BER_TLV_IE, tag=0x82):
pass