Commit Graph

1607 Commits

Author SHA1 Message Date
Harald Welte
1da34c1a4f Fix more odd-length digit sequences via PaddedBcdAdapter
There are more files where trailing digits are indicated using 'f' and
should be stripped during decode, including EF.MSISDN and EF.VGCS

This is not just a presentation issue, but actually rendered wrong data
before, see the modified test output where our "read_record_uicc.ok"
file contained "bcd_len: 7" but then only 6 BCD digits due to this bug.

Change-Id: I4571482da924a3d645caa297108279d182448d21
2025-12-23 20:57:03 +01:00
Harald Welte
381519556c ts_31_102.EF_ECC: Use PaddedBcdAdapter to skip trailing 'f'
The emergency numbers from the example are 911 / 913, and not 911f / 311f

Change-Id: Ibfe1e23431aa803b936dd8529e0542e93d9df0b9
2025-12-23 20:57:03 +01:00
Harald Welte
0fe432fec9 pySim.esim.saip.personalization: Support for EF.SMSP personalization
It's a not-too-uncommon requirement to modify the SMSC address stored in
EF.SMSP.  This adds a ConfigurableParameter for this purpose.

Change-Id: I6b0776c2e753e0a6d158a8cf65cb030977782ec2
2025-12-23 20:57:03 +01:00
Harald Welte
c6fd1d314a esim.saip.FsProfileElement: Add file2pe() for single file conversion
We've had files2pe() for re-encoding all of the files, but let's add
a specific one for re-encoding only one of the files (such as commonly
needed during personalization)

Change-Id: I7b7f61aae6b7df6946dadf2f78fddf92995603ec
2025-12-23 20:57:01 +01:00
Harald Welte
88aff4c577 pySim.ts_51_011.EF_SMSP: Properly handle odd-length ScAddr / TpAddr
As the input phone number ("address") might be of an odd length of
digits, let's use PaddedBcdAdapter to fix two problems:

1) strip any potential trailing f in decoding
2) fix truncation of last digit during encoding

Change-Id: I1e9865e172bc29b8a31c281106d903934e81c686
Depends: pyosmocom Ib5afb5ab5c2bc9b519dc92818fc6974f7eecba16 (0.0.12
2025-12-23 16:21:22 +00:00
Harald Welte
5fe76bb680 pySim/ts_51_011: Properly re-compute ScAddr length
EF.SMSP contains up to two addresses: Both are stored in a fixed-length
field of 12 octets.  However, the actually used size depends on the
number of digits in the respective number.  Let's compute that length
field properly

Change-Id: Idef54a3545d1a5367a1efa2f0a6f7f0c1f860105
2025-12-23 16:21:22 +00:00
Harald Welte
c058c6a34d ts_51_011: Improve testing of EF_SMSP
* add another set of test data (from a real-world SIM card)
* switch from test_decode to test_de_encode as our encoder now works due
  to previous commits.

Change-Id: I8d16e195641bb59b2c26072008f88434692c0cab
2025-12-23 16:21:22 +00:00
Philipp Maier
3d42106ad9 pysim/log: also accept ANSI strings to specify the log message colors
the PySimLogger class currently only accepts cmd2 color enum values.
This is what we need for pySim-shell.py. However, in case we want to
use the PySimLogger in stand-alone programs that do not use cmd2, this
is a bit bulky. Let's add some flexibility to PySimLogger, so that we
can specify the colors as raw ANSI strings as well.

Change-Id: I93543e19649064043ae8323f82ecd8c423d1d921
Related: SYS#7725
2025-12-19 16:12:31 +01:00
Harald Welte
9a23eab163 unittests/test_files: Pass to-be-encoded length to encoder functions
Some of the encoders can only generate valid output if they are told
the expected output size.  This is due to variable-length fields that
depend on the size of the total record (or file).  Let's always pass
the expected length to the encoder methods.

Change-Id: I88f957e49b0c88a121a266d3582e79822fa0e214
2025-12-18 20:38:59 +01:00
Harald Welte
82b57403c7 unittest/test_files.TransparentEF_Test: Actually test encoder
In the test_encode_file() method, we should actually test the encoder,
and not the decoder.  I suppose this was a copy+paste mistake at some
point?  In the LinearFixedEF_Test.test_encoder_record we were already
testing the encoder. Just TransparentEF_Test got it wrong...

Change-Id: Id23305a78ab9acd2e006f2b26b72408795844d23
2025-12-18 20:38:59 +01:00
Harald Welte
a62fb2b987 ts_51_011/EF.SMSP: Fix parsing of parameter_indicators
There's a 3-bit RFU field that (unlike everything else in USIM/UICC)
considers '1' to be the default.  Let's make sure we get that right
during encode.

Change-Id: Ibe24a07f5f73d875d2077fa55471dbfc4e90da23
2025-12-18 20:38:59 +01:00
Harald Welte
111f9da4f5 pyshark_gsmtap: Adjust display filter for some wireshark versions
On my debian unstable system with wireshark 4.6.2-3, the pyshark_gsmtap
APDU source misses to report any ATRs, as those are not part of what's
reported with the 'gsm_sim' display filter.  This is due to
wireshark.git commit bcd82e2370d18e20983b378d494964d89c191cef first part
of the 4.6.0 release, which splits the ATR dissection into a separate
sub-dissector.

We cannot use the seemingly logical 'gsmtap.type == 4' instead, as old
wireshark simply bypasses any output for the gsmtap header if the SIM
sub-dissector is used.

Hence, 'gsm_sim || iso7816.atr' is something compatible with older and
newer wireshark versions.

Change-Id: I53c1c8ed58a82c37cd4be4af3890af21da839e86
2025-12-18 20:35:49 +01:00
Harald Welte
ddbf91fc4a pySim.esim.saip.personalization: Support Milenage customization
Milenage offers the capability for operators to modify the r1-r5
rotation constants as well as the c1-c5 xor-ing constants; let's
add ConfigurableParameters for that.

Change-Id: I397df6c0c708a8061e4adc0fde03a3f746bcb5b6
Related: SYS#7787
2025-12-18 14:42:52 +01:00
Harald Welte
45bffb53f9 pySim.ts_51_011.EF_SMSP: Also permit UCS2 for the alpha_id
TS 51.011 Section 10.5.6 refers to clause 10.5.1 (EF.ADN),
and the latter permits UCS2 in addition to 7-bit GSM alphabet.

Change-Id: If10b3d6d8b34ece02dc0350ca9ea9c3f8fbf3c9e
2025-12-16 16:31:14 +01:00
Harald Welte
cc15b2b4c3 ts_51_011.EF_SMSP: Use integer division during encode
Otherwise we might compute float values and fail encoding like this:

> construct.core.FormatFieldError: Error in path (building) -> tp_vp_minutes
> struct '>B' error during building, given value 169.0

Change-Id: I989669434c7ddee9595ee81a0822f9966907a844
2025-12-16 16:31:12 +01:00
Harald Welte
11dfad88e6 pySim.esim.saip: Fix compatibility with pytohn < 3.11
In python up to 3.10, the byteorder argument of the int.to_bytes()
method was mandatory, even if the length of the target byte sequence
is 1 and there factually is no byteorder.

https://docs.python.org/3.10/library/stdtypes.html#int.to_bytes
vs
https://docs.python.org/3.11/library/stdtypes.html#int.to_bytes

See also: https://discourse.osmocom.org/t/assistance-required-with-saip-pysim-tool-error-while-adding-applets-to-exiting-upp-der/2413/2

Change-Id: I8ba29d42c8d7bf0a36772cc3370eff1f6afa879f
2025-12-14 13:58:34 +01:00
Harald Welte
572a81f2af pySim.runtime: Fix file selection by upper case hex FID
When trying to remove a file (e.g. DF.5G_ProSe, 5FF0),
there seems to be a case sensitive check when checking for the dict:
pySim/runtime.py: get_file_for_filename():

478          def get_file_for_filename(self, name: str):
479              """Get the related CardFile object for a specified filename."""
480              sels = self.selected_file.get_selectables()
481              return sels[name]

The dict sels contains 5ff0, but not 5FF0.
The type of argument name is str. So a case sensitive check will be used.

Change-Id: Idd0db1f4bbd3ee9eec20f5fd0f4371c2882950cd
Closes: OS#6898
2025-12-10 13:34:27 +00:00
Neels Hofmeyr
ff4f2491b8 fix downstream error: ImportError: cannot import name 'style' from 'cmd2'
cmd2 version 3.0 was released, with significant API changes. Limit the
dependency to below 3.0, as already reflected in requirements.txt.

Seeing but not changing the discrepancy in minimum version:
requirements.txt has >2.6.2 while setup.py has >= 1.5.0.

Related: SYS#7775 SYS#7777
Change-Id: I5186f242dbc1b770e3ab8cdca7f27d2a1029fff6
2025-12-10 04:06:43 +01:00
Harald Welte
05fd870d1b contrib/saip-tool: Use repr() on security domain keys
Let's not reinvent the wheel of printing such data structures and use
the repr method provided by the respective class instead.  This also
adds the missing key_usage_qualifier information to the print-out,
as well as the mac_len of the key components.

Change-Id: Iaead4a02f07130fd00bcecc43e1c843f1c221e63
2025-12-09 16:23:49 +00:00
Harald Welte
c07ecbae52 pySim.esim.saip: Hex representation of SecurityDomainKey
Let's print the key_usage_qualifier in hexadecimal notation (more compact)

Change-Id: Ic9a92d53d73378eafca1760dd8351215bce1157a
2025-12-09 16:23:49 +00:00
Alexander Couzens
e20f9e6cdf ts_102_221: EF.ARR: fix read_arr_record
`read_arr_record 1` failed with an AttributeError exception
because RECORD_NR must be all caps.

Change-Id: If44f9f2271293d3063f6c527e5a68dcfaeb5942e
2025-12-04 15:32:16 +01:00
Philipp Maier
3f3f4e20e2 docs/conf.py: update copyright year
The copyright year of the docs is still at 2023, let's update it
to the current year.

Change-Id: Icf64670847d090a250f732d94d18e780e483239b
2025-11-25 17:14:54 +01:00
Philipp Maier
c2fb84251b card_key_provider: add missing type annotation
Related: SYS#7725
Change-Id: I45751d2b31976c04c03006d8baa195eef2576b4f
2025-11-21 17:49:09 +01:00
Philipp Maier
61541e7502 card_key_provider: refactor code and optimize out get_field method
The method get_field in the base class can be optimized out. This
also allows us to remove code dup in the card_key_provider_get_field
function.

Let's also fix the return code behavior. A get method in a
CardKeyProvider implementation should always return None in case
nothing is found. Also it should not crash in that case. This will
allow the card_key_provider_get function to move on to the next
CardKeyProvider. In case no CardKeyProvider yields any results, an
exception is appropriate since it is pointless to continue execution
with "None" as key material.

To make the debugging of problems easier, let's also print some debug
messages that inform the user what key/value pair and which
CardKeyProvider was queried. This will make it easier to investigate
in case an expected result was not found.

Related: SYS#7725
Change-Id: I4d6367b8eb057e7b2c06c8625094d8a1e4c8eef9
2025-11-21 17:49:09 +01:00
Philipp Maier
579214c4d0 card_key_provider: remove method _verify_get_data from base class
The method _verify_get_data was intended to be used to verify the
user input before it further processed but ended up to be a simple
check that only checks the name of the key column very basically.

Unfortunately it is difficult to generalize the check code as the
concrete implementation of those checks is highly format dependent.
With the advent of eUICCs, we now have two data formats with
different lookup keys, so a static list with valid lookup keys is
also no longer up to the task.

After all it makes not much sense to keep this method, so let's
remove it.

(From the technical perspective, the key column is not limitied to
any specif field. In theory it would even be possible to use the KI
as lookup key as well, even though it would not make sense in
practice)

Related: SYS#7725
Change-Id: Ibf5745fb8a4f927397adff33900731524715d6a9
2025-11-21 17:49:09 +01:00
Philipp Maier
4a7651eb65 pySim-shell: re-organize Card Key Provider related options
As we plan to support other formats as data source for the Card Key
Provider soon, the more commandline options may be added and it makes
sense to group the Card Key Provider options in a dedicated group.

Let's also rename the option "--csv-column-key" to just "--column-key".
The column encryption is a generic concept and not CSV format specific.
(let's silently keep the "--csv-column-key" argument so maintain backward
compatibility)

Related: SYS#7725
Change-Id: I5093f8383551f8c9b84342ca6674c1ebdbbfc19c
2025-11-21 17:49:09 +01:00
Philipp Maier
01a6724153 pySim-shell: add command to manually query the Card Key Provider
The Card Key Provider is a built in mechanism of pySim-shell which
allows the user to read key material from a CSV file in order to
avoid having to lookup and enter the key material himself. The
lookup normally done by the pySim-shell commands automatically.

However, in some cases it may also be useful to be able to query the
CSV file manually in order to get certain fields displayed. Such a
command is in particular helpful to check and diagnose the CSV data
source.

Related: SYS#7725
Change-Id: I76e0f883572a029bdca65a5a6b3eef306db1c221
2025-11-21 17:49:09 +01:00
Philipp Maier
a6ca5b7cd1 card_key_provider: remove unnecessary class property definitions
The two properties csv_file and csv_filename are defined by the
constructor anyway, let's remove the declaration in the class body
because it is not needed.

Change-Id: Ibbe8e17b03a4ba0041c0e9990a5e9614388d9c03
2025-11-21 17:49:09 +01:00
Philipp Maier
bcca2bffc2 card_key_provider: rename parameter filename to csv_filename
let's rename the parameter filename to csv_filename to make it
more clear to what kind of file this parameter refers.

Change-Id: Id5b7c61b5e72fb205e30d2787855b2c276840a7b
2025-11-21 17:49:09 +01:00
Philipp Maier
e80f96cc3b card_key_provider: use case-insensitive field names
It is common in CSV files that the columns have uppercase names, so we
have adopted this scheme when we started using the card_key_provider.

This also means that the API of the card_key_provider_get() and
card_key_provider_get_field() function now implicitly requires
uppercase field names like 'ICCID', 'ADM1', etc.

Unfortunately this may be unreliable, so let's convert the field
names to uppercase as soon as we receive them. This makes the API
case-insensitive and gives us the assurance that all field names
we ever work with are in uppercase.

Related: SYS#7725
Change-Id: I9d80752587e2ccff0963c10abd5a2f42f5868d79
2025-11-21 17:49:09 +01:00
Philipp Maier
4550574e03 card_key_provider: separate and refactor CSV column encryption
The CardKeyProviderCsv class implements a column decryption scheme
where columns are protected using a transport key. The CSV files
are enrcypted using contrib/csv-encrypt-columns.py.

The current implementation has two main problems:

- The decryption code in CardKeyProviderCsv is not specific to CSV files.
  It could be re-used in other formats, for example to decrypt columns
  (fields) red from a database. So let's split the decryption code in a
  separate class.

- The encryption code in csv-encrypt-columns.py accesses methods and
  properties in CardKeyProviderCsv. Also having the coresponding
  encryption code somewhere out of tree may be confusing. Let's improve
  the design and put encryption and decryption functions in a single
  class. Let's also make sure the encryption/decryption is covered by
  unittests.

Related: SYS#7725
Change-Id: I180457d4938f526d227c81020e4e03c6b3a57dab
2025-11-21 17:49:09 +01:00
Philipp Maier
08565e8a98 pySim-shell: use log level INFO by default
The default log level of the PySimLogger is DEBUG by default. This is
to ensure that all messages are printed in an unconfigured setup.

However in pySim-Shell we care about configuring the logger, so let's
set the debug log level to INFO in startup. This will allow us to
turn debug messages on and off using the verbose switch.

Change-Id: I89315f830ce1cc2d573887de4f4cf4e19d17543b
Related: SYS#7725
2025-11-21 17:49:09 +01:00
Harald Welte
fb20b7bc58 contrib: Add a small command line script to generate StoreMetadataRequest
It's occasionally useful to be able to manually generate a
SGP.22 StoreMetadataRequest (tag BF25), so let's add a small utility
program doing exactly that.

Change-Id: I56ebd040f09dcd167b0b22148c2f1af56240b3b5
2025-11-21 11:41:29 +00:00
Harald Welte
52df66cd56 pySim.esim.es8p: Support non-operational ProfileMetadata
If no profileClass is given, ProfileMetadata defaults to operational.
Let's add the capability to also generate metadata for test or provisioning profiles.

Change-Id: Id55537ed03e2690c1fc9545bb3c49cfc76d8e331
2025-11-21 11:41:29 +00:00
Philipp Maier
784cebded4 card_key_provider: add unit-test
There is no unit-test for the CardKeyProviderCsv class yet. Let's add
one to ensure that the CardKeyProviderCsv class keeps working as expected.

Related: SYS#7725
Change-Id: I52519847a4c4a13a7bca49985133872b01c4aaab
2025-11-18 15:47:40 +01:00
Philipp Maier
4f75aa1c8f card_key_provider: fix sourcecode formatting
Change-Id: I5675f9f087086646937ca077d3545d2729ccd812
2025-11-18 14:08:42 +01:00
Philipp Maier
94811ab585 pySim-shell: allow user friendly selection of the pin type
The CHV commands (verify_chv, enable_chv, disable_chv, unblock_chv)
provide a --pin-nr parameter.

The --pin-nr is a decimal parameter that specifies the pin type to be
used. The exact pin type numbers are specified in ETSI TS 102.221,
Table 9.3.

Unfortunately the --pin-nr parameter is not very intuitive to use, it
it requires the user to manually lookup the numeric value. The specs
list that value as hexadecimal, so the user also has to convert it
to decimal. To make this less complicated, let's also accept
hexadecimal numbers with the --pin-nr parameter.

However, this alone does not improve the user expierience much. Let's
also add a --pin-type parameter (similar to the --adm-type parameter
of the verify_adm command) to specifiy the pin type in a human
readable form.

Change-Id: I0b58c402d95cbc4fe690e6edb214829d463e9f2c
2025-11-01 14:03:23 +00:00
Philipp Maier
f3e6e85f99 osmo-smdpp: update documentation
osmo-smdpp has built-in SSL/TLS support for quite some time now. The manual does not
yet mention this feature yet.

Change-Id: I2db5ae32914386a34eab1ed7d2aff8cae82bfa9b
2025-10-31 16:31:45 +01:00
Philipp Maier
7f2cb157c8 osmo-smdpp: update commandline help and default port
osmo-smdpp has built-in TLS support for some time now. Let's update
update the commandline help to be more concise.

Since the built-in SSL/TLS support is enabled by default, let's also
update the default port from 8000 to 443.

Change-Id: Ib5a069a8612beb1a9716a7514b498ec70d141178
2025-10-31 16:31:40 +01:00
Philipp Maier
f94f366cf9 runtime: check record/file size before write
When writing data to a transparent or linear fixed (record oriented)
and the data to write exceeds the record/file size, then the UICC will
respond with an error "6700: Checking errors - Wrong length"

In particular when the data is supplied as a JSON object and not as a
hex string, it may not be immediately obvious to the average user what
the problem actually is.

Let's check the record/file size before writing the data and raise an
exception in case the data excieeds the record/file size. Let's also
print an informative string message in case the data length is less
than the record/file size to make the user aware of unwritten bytes
at the end of a record/file.

Related: OS#6864
Change-Id: I7fa717d803ae79398d2c5daf92a7336be660c5ad
2025-10-28 13:39:35 +01:00
Philipp Maier
4429e1cc70 pySim-shell: add a logger class to centralize logging
In many sub modules we still use print() to occassionally print status
messages or warnings. This technically does not hurt, but it is an unclean
solution which we should replace with something more mature.

Let's use python's built in logging framework to create a static logger
class that fits our needs. To maintain compatibility let's also make sure
that the logger class will behave like a normal print() statement when no
configuration parameters are supplied by the API user.

To illustrate how the approach can be used in sub-modules, this patch
replaces the print statements in runtime.py. The other print statements
will the be fixed in follow-up patches.

Related: OS#6864
Change-Id: I187f117e7e1ccdb2a85dfdfb18e84bd7561704eb
2025-10-25 19:46:34 +00:00
Philipp Maier
1ab2f8dd9d commands: do not use b2h with a string
The function h2b expects a bytearray and must not be used on a string.
This is also true for nullstrings ('').

Related: OS#6869
Change-Id: I0e28e6ec476901bf19aa0f8640e41c74aa6e3aa2
2025-10-21 17:17:21 +02:00
Oliver Smith
e5f39fbd34 Pass pylint 3.3.4 from debian trixie
************* Module osmo-smdpp
osmo-smdpp.py:657:72: E0606: Possibly using variable 'iccid_str' before assignment (possibly-used-before-assignment)

=> False-positive: code paths that don't set iccid_str raise an error, so
   this shouldn't be a problem.

************* Module pySim-smpp2sim
pySim-smpp2sim.py:427:4: E1101: Module 'twisted.internet.reactor' has no 'run' member (no-member)

=> False-positive: pylint doesn't recognize dynamically set attributes.

************* Module es9p_client
contrib/es9p_client.py:126:11: E0606: Possibly using variable 'opts' before assignment (possibly-used-before-assignment)

=> Real bug, should be "self.opts".

Related: https://stackoverflow.com/a/18712867
Change-Id: Id042ba0944b58d98d27e1222ac373c7206158a91
2025-10-02 09:06:44 +02:00
Harald Welte
947154639c pySim.esim.saip.FsNodeADF: Fix __str__ method
It's quite common for a FsNodeADF to not have a df_name, so we need
to guard against that during stringification to avoid an exception.

Change-Id: I919d7c46575e0ebcdf3b979347a5cdd1a9feb294
2025-09-24 17:59:17 +00:00
Kian-Meng Ang
4ee99c18cd Fix typos
Found via `codespell -S tests -L ist,adn,ciph,ue,ot,readd,te,oce,tye`

Change-Id: I00a72e4f479dcef88f7d1058ce53edd0129d336a
2025-09-24 17:59:17 +00:00
Eric Wild
5d2e2ee259 bsp: fix maxpayloadsize
Change-Id: I08f544877b79681ad1f758a1ca31c292eae9f868
2025-09-24 15:04:36 +00:00
Harald Welte
92841f2cd5 docs/suci-keytool.rst: spelling fix
Change-Id: Idb45086d9d5963072fbc97835d551e2f78ad847f
2025-09-04 18:57:27 +02:00
Bjoern Riemer
caa955b3ac Identify cards by Historical bytes of ATR
- try to identify the CardModel by just comparing the Historical Bytes if matching by Whole ATR failed
- add decompose ATR code from pyscard-contrib

Related: OS#6837
Change-Id: Id7555e42290d232a0e0efc47e7d97575007d846f
2025-08-28 21:44:24 +00:00
Bjoern Riemer
4dddcf932a Make sure to select MF before probing for files/Addons
Change-Id: I685367c282f57a8856668a3172a9391a5bbcf2e2
2025-08-28 21:44:24 +00:00
Oliver Smith
10fe0e3aae docs: fix authors line exceeding the page
Fix that the authors get cut off as they exceed the page in the PDF
version. This can currently be seen here:
https://downloads.osmocom.org/docs/pysim/master/osmopysim-usermanual.pdf

Change-Id: Iacbba6c2f74bf2b9f96057e71bde017a11f703a8
2025-08-27 14:31:13 +02:00