Commit Graph

7 Commits

Author SHA1 Message Date
Harald Welte
949c2a2d57 Use osmocom.construct.{Bytes,GreedyBytes} for hexstring input support
The upstream construct.{Bytes,GreedyBytes} only support bytes/bytearray
input data for the encoder, while the [newly-created]
osmocom.construct.{Bytes,GreedyBytes} support alternatively hex-string input.

This is important in the context of encoding construct-based types from
JSON, where our osmocom.utils.JsonEncoder will automatically convert any
bytes to hex-string, while re-encoding those hex-strings will fail prior
to this patch.

Change-Id: I1c8df6350c68aa408ec96ff6cd1e405ceb1a4fbb
Closes: OS#6774
2025-04-28 09:32:52 +02:00
Harald Welte
a2bfd397ba pySim-smpp2sim.py: Simulate SMSC+CN+RAN+UE for OTA testing
The pySim-smpp2sim.py program exposes two interfaces:
* SMPP server-side port, so external programs can rx/tx SMS
* APDU interface towards the SIM card

It therefore emulates the SMSC, Core Network, RAND and UE parts
that would normally be encountered in an OTA setup.

Change-Id: Ie5bae9d823bca6f6c658bd455303f63bace2258c
2025-04-08 18:14:18 +00:00
Harald Welte
a3962b2076 Migrate over to using pyosmocom
We're creating a 'pyosmocom' pypi module which contains a number of core
Osmocom libraries / interfaces that are not specific to SIM card stuff
contained here.

The main modules moved in this initial step are pySim.tlv, pySim.utils
and pySim.construct. utils is split, not all of the contents is
unrelated to SIM Cards.  The other two are moved completely.

Change-Id: I4b63e45bcb0c9ba2424dacf85e0222aee735f411
2024-09-03 21:57:47 +02:00
Harald Welte
e8439d9639 pylint: sms.py
pySim/sms.py:23:0: W0404: Reimport 'Flag' (imported line 23) (reimported)
pySim/sms.py:54:4: C0103: Method name "fromBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:60:4: C0103: Method name "toBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:120:4: C0103: Method name "fromBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:132:4: C0103: Method name "fromSmpp" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:137:4: C0103: Method name "toSmpp" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:141:4: C0103: Method name "toBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:188:4: C0103: Method name "fromBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:192:8: W0612: Unused variable 'flags' (unused-variable)
pySim/sms.py:209:4: C0103: Method name "toBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:228:4: C0103: Method name "fromSmpp" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:236:4: C0103: Method name "fromSmppSubmit" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:279:4: C0103: Method name "fromBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:306:12: W0107: Unnecessary pass statement (unnecessary-pass)
pySim/sms.py:311:12: W0107: Unnecessary pass statement (unnecessary-pass)
pySim/sms.py:319:4: C0103: Method name "toBytes" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:339:4: C0103: Method name "fromSmpp" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:347:4: C0103: Method name "fromSmppSubmit" doesn't conform to snake_case naming style (invalid-name)
pySim/sms.py:373:4: C0103: Method name "toSmpp" doesn't conform to snake_case naming style (invalid-nam

Change-Id: I8082a01443ef568eebda696239572f0af7b56f1b
2024-02-05 09:50:47 +01:00
Harald Welte
985ff31efa work-around what appears to be a pylint bug
smpp.pdu.pdu_types.DataCodingScheme.GSM_MESSAGE_CLASS very much exists,
and I can prove that manually in the python shell.  So let's assume this
is a pylint bug and work around it

pySim/sms.py:72:21: E1101: Instance of 'DataCodingScheme' has no 'GSM_MESSAGE_CLASS' member (no-member)

Change-Id: Iab34bae06940fecf681af9f45b8657e9be8cbc7b
2023-06-27 09:26:28 +02:00
Harald Welte
0b32725f80 Add support for encoding/decoding SMS in TPDU and SMPP format
This is important when talking OTA with a SIM.

Change-Id: I0d95e62c1e7183a7851d1fe38df0f5133830cb1f
2023-06-18 10:46:23 +02:00
Harald Welte
75a58d1a87 Add new pySim.ota library, implement SIM OTA crypto
This introduces a hierarchy of classes implementing

* ETS TS 102 225 (general command structure)
* 3GPP TS 31.115 (dialects for SMS-PP)

In this initial patch only the SMS "dialect" is supported,
but it is foreseen that USSD/SMSCB/HTTPS dialects can be
added at a later point.

Change-Id: I193ff4712c8503279c017b4b1324f0c3d38b9f84
2022-09-08 15:45:55 +02:00