Commit Graph

15 Commits

Author SHA1 Message Date
Harald Welte
e37cdbcd3e docs: Better python doc-strings for better pySim.esim manual
Change-Id: I7be6264c665a2a25105681bb5e72d0f6715bbef8
2025-05-07 10:50:47 +02:00
Harald Welte
f9631fb361 pySim.esim.saip.templates: Fix DF_TELECOM FileID (7F10, not 7F11)
Change-Id: I4bc37f9d99c046cd6c6accaaf460a39eb79b660f
2024-10-20 10:14:34 +02:00
Harald Welte
6aabb92c38 esim.saip.templates: Fix expand_default_value_pattern for length==0
The original code treated length==0 like length==None (unspecified),
which is wrong.

Change-Id: I39fa1e2b1b9d6d1c671ea37bdbec1d6f97e8a5e7
2024-09-03 21:57:47 +02:00
Harald Welte
89dff98fb6 pySim.esim.saip.templates: Introduce dependency/hierarchy information
The SAIP specification is very weird in a way that it treats the DF and
EF descriptions as some kind of flat structure without describing the
hierarchy.  So when creating a DF, sometimes it should be created below
the current DF, and sometimes it should be adjacent next to the current
DF.

Let's introduce
* a 'ppath' property of FileTemplate to indicate if a file is anything
  but a direct sibling of the 'base DF' of the PE
* an 'extends' property of ProfileTemplate to indicate that a given
  template does not have its own 'base DF', but that its contents merely
  extends that of another ProfileTemplate
* a 'parent' property of ProfileTemplate to indicate a parent
  ProfileTemplate below whose 'base DF' our files should be placed.

Change-Id: Ieab4835cd21008b289713784c0eb7170af2ccfb9
2024-08-15 19:48:25 +02:00
Harald Welte
10e9e97724 pySim.esim.saip.templates: Add expand_default_value() method
This method can be used to expand the default value pattern of the
file system template for the file to the specified (record, file) length.

Change-Id: Id3eb16910c0bdfa572294e14ca1cd44ca95ca69f
2024-08-05 15:56:15 +00:00
Harald Welte
8f5fd37b4a pySim.esim.saip.templates: Fix '...' notation in default value
The default value must contain '...' to indicate a variable-length
default value section, not '..'

Change-Id: I8d78278065c145b86460acf8eb723babe777c4f6
2024-08-05 15:56:15 +00:00
Harald Welte
ca1b00f99e pySim.esim.saip.templates: Explicitly specifiy repeatable default value
Change-Id: I9ae2c36f5bffac392c1219bb6ea21c1c05dff4b9
2024-08-05 15:56:15 +00:00
Harald Welte
465d1a07e0 pySim.esim.saip.templates: Add SaipSpecVersion
The SAIP specification version implicitly determines which filesystem
templates (or versions thereof) are supported.  So if a given eUICC
states it implements SAIP version 2.3.0, then we have to translate
this into which template versions that means.  The new SaipSpecVersion
and its derived classes do exactly that.

Change-Id: I3a894c72c22e42bd2067e067be80a67197ad1bf2
2024-08-05 15:56:15 +00:00
Harald Welte
19328e3bbd pySim.esim.saip.templates: Update to SAIP v3.3.1 (July 2023)
This new TCA SAIP version introduces a number of aditional templates

Change-Id: Ie8aeae3f5b36a3141a70f670c220932389d241a6
2024-08-04 12:46:12 +02:00
Harald Welte
d2254377b6 pySim.esim.saip.templates: Add a notion of the path of a file
The SAIP data format is inherently flat and doesn't intrinsically
have an idea of the tree-like structure of a filesystem.  However,
if we want to (for example) convert a physical USIM into an eSIM
profile, we need to find the template for a given file, where the file
is identified by its path.

Let's expose a path property of the FileTemplate object, and populate
that when creating the FileTemplate as part of a ProfileTemplate.

Change-Id: Ie145ba159081daf8fbfa544f6d4248f05b7eea96
2024-08-04 12:46:12 +02:00
Harald Welte
041a1b33fc pySim.esim.saip.template: Permit file-size for BER-TLV files
We previously only permitted this for transparent files (TR), but
file size can of course also be specified for BER-TLV files.

Change-Id: Ie007cf2ccde0a17d0fb853a96b833f064ae52c59
2024-08-04 12:46:12 +02:00
Harald Welte
6b1c6a986c pySim.esim.saip.templates: Build tree from template files
Change-Id: I13e80e9dbddbb145411378a0d9e01461aef75db4
2024-07-29 13:06:27 +02:00
Harald Welte
3c530c3c1a pySim.saip.oid: Properly differentiate optional from non-optional templates
There are e.g. templates for usim and for opt-usim, and they should not
be confused with each other.  Let's reflect that in the naming.

Change-Id: Ic6d04ce3172dc969c6b8c018b8d305eb6fd3f550
2024-07-10 06:51:23 +00:00
Harald Welte
5f6b64dc25 pylint: esim/saip/templates.py
pySim/esim/saip/templates.py:106:0: R1707: Disallow trailing comma tuple (trailing-comma-tuple)
pySim/esim/saip/templates.py:56:37: C0121: Comparison 'self.fid != None' should be 'self.fid is not None' (singleton-comparison)
pySim/esim/saip/templates.py:57:28: C0121: Comparison 'self.arr != None' should be 'self.arr is not None' (singleton-comparison)
pySim/esim/saip/templates.py:58:37: C0121: Comparison 'self.sfi != None' should be 'self.sfi is not None' (singleton-comparison)
pySim/esim/saip/templates.py:96:11: C0123: Use isinstance() rather than type() for a typecheck. (unidiomatic-typecheck)
pySim/esim/saip/templates.py:591:0: W1404: Implicit string concatenation found in list (implicit-str-concat)

Change-Id: I181578ba630c8bdb558297e990411b59593652a0
2024-02-05 09:53:45 +01:00
Harald Welte
3f3fd1a841 add SAIP template handling + v3.1 definitions
This adds classes for describing profile templates as well
as derived classes defining the profile templates of the
"Profile Interoperability Technical Specification", specifically
it's "ANNEX A (Normative): File Structure Templates Definition"

We need a machine-readable definition of those templates, so
we can fully interpret an unprotected profile package (UPP),
as the UPP usually only contains the increment/difference to
a given teplate.

Change-Id: I79bc0a480450ca2de4b687ba6f11d0a4ea4f14c8
2024-01-29 09:23:36 +01:00