Commit Graph

12 Commits

Author SHA1 Message Date
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
Vadim Yanitskiy bdac3f61be Bump minimum required construct version to v2.9.51
With this version I can get all unittests passing:

  python -m unittest discover tests/

We're passing argument 'path' to stream_read_entire(), which was
added in [1] and become available since v2.9.51.

Change-Id: I4223c83570d333ad8d79bc2aa2d8bcc580156cff
Related: [1] bfe71315b027e18e62f00ec4de75043992fd2316 construct.git
Related: OS#5666
2022-09-05 23:15:10 +07:00
Harald Welte 21caf32e3d Introduce APDU/TPDU trace decoder
This introduces a new pySim.apdu module hierarchy, which contains
classes that represent TPDU/APDUs as exchanged between
SIM/UICC/USIM/ISIM card and UE.

It contains instruction level decoders for SELECT, READ BINARY and
friends, and then uses the pySim.filesystem.Runtime{Lchan,State} classes
to keep track of the currently selected EF/DF/ADF for each logical
channel, and uses the file-specific decoder classes of pySim to decode
the actual file content that is being read or written.

This provides a much more meaningful decode of protocol traces than
wireshark will ever be able to give us.

Furthermore, there's the new pySim.apdu_source set of classes which
provides "input plugins" for obtaining APDU traces in a variety of
formats.  So far, GSMTAP UDP live capture and pyshark based RSPRO
live and pcap file reading are imlpemented.

Change-Id: I862d93163d495a294364168f7818641e47b18c0a
Closes: OS#5126
2022-07-23 12:18:57 +02:00
Harald Welte 1a4e9fd163 cmd2: Constrain version to >= 1.3.0 but < 2.0.0
2.0.0 introduces several incompatible changes, see
https://github.com/python-cmd2/cmd2/blob/master/CHANGELOG.md
as well as https://github.com/python-cmd2/cmd2/issues/1120

As we want to be able to use what distributions ship, let's stay
with 1.x for now.  If piip is used, use 1.5

Change-Id: Iecc953269d5ae9ed9f31b829743c63bdfd29fa61
2021-06-11 23:47:26 +02:00
Robert Falkenberg b07a3e9c87 Add codecs for EF_SPN and GSM strings via construct
This will replace the hand-crafted codec for EF_SPN
by a struct definition using the construct library.
Old encoders are updated and kept for API compatibility
but are not used internally anymore.

New data structures:
* Rpad(Adapter): Right-padded bytestring (0xff, adjustable)
* GsmStringAdapter(Adapter): Codec for "SMS default 7-bit
	coded alphabet as defined int TS 23.038" using
	the gsm0338 library.
* GsmString(n): Convenient wrapper of both above

Adjustments:
* utils: update+deprecate old dec_spn(), enc_spn()
* remove refs to deprecated functions

Change-Id: Ia1d3a3835933bac0002b7c52511481dd8094b994
2021-05-10 06:15:39 +02:00
Harald Welte 4ae228afc7 Implement EF.ARR (Access Rule Reference) decoding
The Access Mode (AM) and Security Condition (SC) DOs are incredibly
convoluted, so we need a lot of code to properly decode them.

Change-Id: If4f0725a849d41fd93de327ed00996d8179f2b0e
2021-05-04 13:24:07 +02:00
Martin Hauke 0f1862799f setup: set minimum required versions for contruct and cmd2
* 'String' class renamed to 'PaddedString' in construct v2.9
* 'CommandSet' was introduced with with cmd2 v1.3.0

Change-Id: I170a9e896612086c4b0535cd6d950346897abc3b
2021-04-30 14:43:44 +02:00
Robert Falkenberg bba2bd4348 setup: add (nested) library pySim.transport
* setup.py did not install pySim.transport sub-library

Change-Id: Ice026a28c4843121591f3404225c7f6aec4df6c7
2021-04-16 12:43:11 +02:00
Harald Welte e0f9ef1606 integrate 'construct' python library
'construct' is a declarative symmetric encoder/decoder for user
specified binary formats.  It should come in extremely handy in
tools like pySim.

We start the integration by adding transport methods for transceiving
APDUs with built-in encoding of the command data and decoding of the
response data.

Change-Id: Ibf457aa8b9480a8db5979defcfafd67674303f6c
2021-04-11 12:20:29 +02:00
Harald Welte edee155773 setup.py: add missing comma in list of dependencies
Change-Id: If93d8c67cdfacc1f30307c8cfb38924fb2cbabbe
2021-04-10 18:41:15 +02:00
Harald Welte 0d4e98a2ac pySim-shell: JSONpath support for updating files/records
Change-Id: Iad09b3d878b8b58ad34cb549c80f8a6eb3149faa
2021-04-07 16:45:12 +00:00
Harald Welte 9813dc958b Introduce setuptools support
Add a pyproject.toml and setup.py for using setuptools to install
pySim and its upstream dependencies.

Change-Id: I5698f3b29184340db69a156f985aa3c78d9b5674
2021-04-04 10:54:46 +02:00