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| author | Supreeth Herle <herlesupreeth@gmail.com> | 2019-12-22 08:59:16 +0100 |
|---|---|---|
| committer | Vadim Yanitskiy <axilirator@gmail.com> | 2020-02-15 04:57:20 +0700 |
| commit | 5a541016fbb85e46b569ec0cf113494269088ee3 (patch) | |
| tree | 91f7f82fc61c2420f32e9639cb8b2ed84a26c027 /pySim | |
| parent | 4b1c7633954697eda687fb122a73166446fa1f83 (diff) | |
pySim-prog.py: add support for MSISDN programming
This change implements programming of EF.MSISDN as per 3GPP TS 31.102,
sections 4.2.26 and 4.4.2.3, excluding the following fields:
- Alpha Identifier (currently 'FF'O * 20),
- Capability/Configuration1 Record Identifier ('FF'O),
- Extension1 Record Identifier ('FF'O).
This feature is introduced exclusively for sysmoUSIM-SJS1.
Othere SIM card types need to be tested.
Change-Id: Ie033a0ffc3697ae562eaa7a241a0f6af6c2b0594
Diffstat (limited to 'pySim')
| -rw-r--r-- | pySim/cards.py | 11 | ||||
| -rw-r--r-- | pySim/utils.py | 26 |
2 files changed, 37 insertions, 0 deletions
diff --git a/pySim/cards.py b/pySim/cards.py index 802ad69..b4b5fdf 100644 --- a/pySim/cards.py +++ b/pySim/cards.py @@ -658,6 +658,17 @@ class SysmoUSIMSJS1(Card): r = self._scc.select_file(['3f00', '7f10']) data, sw = self._scc.update_record('6f42', 1, lpad(p['smsp'], 104), force_len=True) + # EF.MSISDN + # TODO: Alpha Identifier (currently 'ff'O * 20) + # TODO: Capability/Configuration1 Record Identifier + # TODO: Extension1 Record Identifier + if p.get('msisdn') is not None: + msisdn = enc_msisdn(p['msisdn']) + data = 'ff' * 20 + msisdn + 'ff' * 2 + + r = self._scc.select_file(['3f00', '7f10']) + data, sw = self._scc.update_record('6F40', 1, data, force_len=True) + def erase(self): return diff --git a/pySim/utils.py b/pySim/utils.py index 12f66b9..8420b23 100644 --- a/pySim/utils.py +++ b/pySim/utils.py @@ -299,3 +299,29 @@ def dec_msisdn(ef_msisdn): msisdn = '+' + msisdn return (npi, ton, msisdn) + +def enc_msisdn(msisdn, npi=0x01, ton=0x03): + """ + Encode MSISDN as LHV so it can be stored to EF.MSISDN. + See 3GPP TS 31.102, section 4.2.26 and 4.4.2.3. + + Default NPI / ToN values: + - NPI: ISDN / telephony numbering plan (E.164 / E.163), + - ToN: network specific or international number (if starts with '+'). + """ + + # Leading '+' indicates International Number + if msisdn[0] == '+': + msisdn = msisdn[1:] + ton = 0x01 + + # Append 'f' padding if number of digits is odd + if len(msisdn) % 2 > 0: + msisdn += 'f' + + # BCD length also includes NPI/ToN header + bcd_len = len(msisdn) // 2 + 1 + npi_ton = (npi & 0x0f) | ((ton & 0x07) << 4) | 0x80 + bcd = rpad(swap_nibbles(msisdn), 10 * 2) # pad to 10 octets + + return ('%02x' % bcd_len) + ('%02x' % npi_ton) + bcd |