The SFI TLV contanins not the raw SFI, but it contains the SFI
shifted to left by 3 bits (for some strange reason). So let's
un-shift it.
Change-Id: Ibc69b99010d2a25cbb69b6a3d1585d0cb63f1345
This adds support for creating/deleting and terminating files,
as well as support for permanent card termination.
Change-Id: I5b1ffb1334afa18d62beb642268066a30deb7ea6
pytlv is a nightmare of shortcomings, let's abandon it in favor of
our own meanwhile-created pySim.tlv. This has the added benefit
that unknown tags finally no longer raise exceptions.
Change-Id: Ic8e0e0ddf915949670d620630d4ceb02a9116471
Closes: OS#5414
We had a mixture of tab and 4space based indenting, which is a bad
idea. 4space is the standard in python, so convert all our code to
that. The result unfortuantely still shoed even more inconsistencies,
so I've decided to run autopep8 on the entire code base.
Change-Id: I4a4b1b444a2f43fab05fc5d2c8a7dd6ddecb5f07
EF.DIR can not only contain the AID + Label of TS 102 221, but can
also contain any of the DOs specified in ISO7816-4. Let's imoplement
this based on the modern pySim.tlv parser
Change-Id: I875eb49e1f0370428c2eae69af84f5483bd5b1fc
Closes: OS#5410
The method decode_select_response does not access any property of the
object. This means the method can be static.
Change-Id: Idd7aaebcf1ab0099cd40a88b8938604e84d8a88b
UICC and old SIM cards can be difficult to tell apart without prior
knowledge of the card. The ATR won't tell if the card is UICC or not.
The only remaining option is to try out if the card is able to handle
UICC APDUs. The same is true for 2G SIM cards. It is not guranteed that
every UICC card will have 2G functionality.
Lets add functionality to match a profile to the currently plugged card
by actively probing it.
Lets also add another profile to distinguish between UICC-only cards and
UICC cards that include SIM functionality.
Change-Id: If090d32551145f75c644657b90085a3ef5bfa691
Related: OS#5274
The class byte and the select control bytes are different for SIM cards
and UICC cards. Lets define those parameters in the card profile, so
that we always get the correct parameters depending on which profile we
use.
Change-Id: I2d175e28bd748a4871b1373273b3a9be9ae8c4d0
Related: OS#5274
There are some problems with the usage of decode_select_response. At the
moment the ADF files overload the related method to provide decoding of
the select responses as per 3gpp TS 102 221. However, this also means
that the decoder is only available under ADF.USIM and ADF.ISIM. DF.GSM
and DF.TELECOM also overload the decoder method, just like an ADF would
do. This decoding method is then implemented as per 3gpp TS 51 011.
Since this a a problem on UICCs, the method detects the magic byte 0x62
that can be found at the beginning on every select response of an UICC
to defer to the TS 102 221 decoding method. TS 51 011 defines the first
two bytes of the select response as RFU. This at least problematic.
To solve this there should be a default method for
decode_select_response in the profile, which can be used if no file
overloads it with a specific decoder. ADFs use specific decoders, but
everything else should use the default decoder. When we deal with an
UICC, we expect the select response to be consistantly conform to TS
102 221, if we deal with a clasic sim we expect responses as per TS 51
011 only.
Since it is still possible to replace the select response decoder we
still have the opportunity to have custom select response in cartain
DFs and ADFs should we need them.
Change-Id: I95e33ec1755727dc9bbbc6016ce2d99a9e66f214
Related: OS#5274
This adds support for a new EF file type: BER-TLV files. They are
different from transparent and linear fixed EFs in that they neither
operate on a byte stream nor fixed-sized records, but on BER-TLV encoded
objects. One can specify a tag value, and the card will return the
entire TLV for that tag.
As indicated in the spec, the magic tag value 0x5C (92) will return a
list of tags existing in the file.
Change-Id: Ibfcce757dcd477fd0d6857f64fbb4346d6d62e63
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
The function fixup_fcp_proprietary_tlv_map() addes propritary TLV
tags in the range of d0 to ff to the TLV map. However, the spec defines
this range as b7 and b8 of the first tag byte set to 1. This results
in a range from c0 to ff. See also ETSI TS 102 221, section 11.1.1.4.6.0
Change-Id: I8359527c9ff303b257b181b87dc440f27735ece9
Related: OS#4963
The Change I83d718ff9c3ff6aef47930f38d7f50424f9b880f removes the
keyword arguments from the CardProfile class constructor. This requires
us to use the keywords during instantiation since we can not rely on
the position anymore.
Change-Id: Ia62597c59287848662dbbedcc38ba90f183c4aca
pySim-prog was nice when there were only 5 parameters on a SIM that we
could program, and where the use case was pretty limited. Today, we
have SIM/USIM/ISIM cards with hundreds of files and even more parameters
to program. We cannot add a command line argument for each file to
pySim-prog.
Instead, this introduces an interactive command-line shell / REPL,
in which one can navigate the file system of the card, read and update
files both in raw format and in decoded/parsed format.
The idea is primarily inspired by Henryk Ploatz' venerable
cyberflex-shell, but implemented on a more modern basis using
the cmd2 python module.
See https://lists.osmocom.org/pipermail/simtrace/2021-January/000860.html
and https://lists.osmocom.org/pipermail/simtrace/2021-February/000864.html
for some related background.
Most code by Harald Welte. Some bug fixes by Philipp Maier
have been squashed.
Change-Id: Iad117596e922223bdc1e5b956f84844b7c577e02
Related: OS#4963
Harald Welte
Lennart Rosam
Philipp Maier