| Commit message (Collapse) | Author | Age | Files | Lines |
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The compiler thinks that ind or ind_mask may be used uninitialized, because it
doesn't analyze the conditionality of command line arguments and other
variables set accordingly. Make the compiler happy by zero initializing.
Change-Id: I9ddcb0525159da520aceaeb6e908a735a003bb5a
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When doing UMTS AKA with AUTS, it can be interesting to know the SQN.MS that
was encoded in the AUTS. The only way to know this is to provide it as a
separate out-parameter from milenage_gen_vec_auts(), because the SQN.MS from
AUTS stored in umts.sqn is immediately modified non-trivially by
milenage_gen_vec(). Add sqn_ms to struct osmo_sub_auth_data to retain SQN.MS
even after a vector was generated.
Use this to print out SQN.MS for 'osmo-auc-gen -3 -A'.
Adjust test suite expectations.
Related: OS#2464
Change-Id: I9fc05bbf169d06716f40b995154fd42a3f91bef3
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Make ind_mask available in the main(){} scope, in order to print out
IND = SQN & ind_mask.
Adjust test suite expectations.
Related: OS#2465
Change-Id: I91eac53c4af66a58b9372d9baf5781fc9f29b1fc
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osmo-auc-gen so far does not allow indicating the IND bit length of SQN. A
default of 5 serves most practical cases, nevertheless we should allow passing
arbitrary IND lengths.
Enhance the test suite to test --ind-len.
Related: OS#2465
Change-Id: Ia1d8b6a823ffc92290b3e39e4e4665aeff80ccc0
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During UMTS AKA, the caller typically indicates which IND slot the next used
SQN should belong to. Without this option, osmo-auc-gen will always produce SQN
from IND-slot 0. Add --ind option.
Enhance the osmo-auc-gen_test.sh to expect errors with useful printouts on
stderr, and add tests that verify valid --ind ranges.
Related: OS#2465
Change-Id: Ib60eec80d58ca9a0a01e7fbd2bcbbd4339b1a6d8
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Most USIM out there seem to use IND-length = 5 bits, so do sysmousim-sjs1.
Currently from initialization we are using an IND length of zero in
osmo-auc-gen, which produces confusing SQN results after AUTS:
Where want SQN to be incremented to the next IND array, usually +32, an IND-len
of 0 makes for only +1.
As result, the osmo-auc-gen_test.sh produces SQN 32 instead of 24 after
receiving SQN.MS = 23 from AUTS: adjust test expectations.
Related: OS#2465
Change-Id: I9fcc11fa2b5816302dcc6b72249b1ee40d5a61f5
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The user supplied an --sqn to generate a vector for, but milenage_gen_vec()
performs a nontrivial SQN increment before generating the vector. To end up
with the user supplied SQN, we need to reverse this increment beforehand.
Do this after all cmdline args have been parsed, in case one of them modifies
the IND-bitlen parameter, which affects the SQN calculations.
Related: OS#2464 OS#2465
Change-Id: Ic51a8f6333fee9c02b4073ca360991d0aa69c74f
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osmo-auc-gen tries to be helpful by deriving the SQN.MS from the SQN that
resulted from AUTS + milenage_gen_vec(), but there is actually no way to derive
the actual AUTS SQN.MS from the resulting SQN.
Completely drop the printout to prevent confusion.
Adjust test suite expectations.
Related: OS#2464
Change-Id: Ie2432c6d6a23818f7b3a29b1295dcbb505e2be53
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Considering the various styles and implications found in the sources, edit
scores of files to follow the same API doc guidelines around the doxygen
grouping and the \file tag.
Many files now show a short description in the generated API doc that was so
far only available as C comment.
The guidelines and reasoning behind it is documented at
https://osmocom.org/projects/cellular-infrastructure/wiki/Guidelines_for_API_documentation
In some instances, remove file comments and add to the corresponding group
instead, to be shared among several files (e.g. bitvec).
Change-Id: Ifa70e77e90462b5eb2b0457c70fd25275910c72b
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Especially for short descriptions, it is annoying to have to type \brief for
every single API doc.
Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes
the first sentence of an API doc as the brief description.
Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
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Change-Id: I3060cfee8ece86c4c89a65f93c9f5424df0c410b
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Change-Id: Id577d9df5a814ad5aa00e1d04c4790d75d17ad7e
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Change-Id: Id94d2fe83f080a18a2a686206bd21cf5fafe2fa7
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Previously, this would fail when generating to $builddir if that subtree did
not exist yet in $builddir.
Change-Id: Ia4fba96dcf74a25cf3e515eb3e4f970e0c3cdd54
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osmo-auc-gen on 32bit systems allowed only --sqn up to 32bits width. However,
the recently added regression test for osmo-auc-gen includes an ivocation with
a 48bit wide --sqn, which now causes the builds to fail on 32bit systems.
Fix the --sqn argument parsing for larger integers by using strtoull(). Do away
with the intermediate variable 'ul' and place the value directly in the auth
data struct.
Change-Id: Ifb73b3b3de06576e36076ca573d52327f90a1f77
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Prepare for the implementation of splitting SQN increments in SEQ and an IND
part; particularly to clearly show where the changes in auth/milenage_test's
expectations originate.
Rationale: the source of UMTS auth vectors, for us usually OsmoHLR, typically
stores the last used SQN, not the next one to be used. Particularly with the
upcoming fix of the SQN scheme, this change is important: the next SQN will
depend on which entity asks for it, because each auth consumer may have a
particular slot in the IND part of SQN. It does not make sense to store the
next SQN, because we will not know which consumer that will be for.
The milenage_test has always calculated a tuple for SQN == 34. To account for
the increment now happening before calculating a tuple, lower the test_aud->sqn
by one to 0x21 == 33, so that it is still calculating for SQN == 34.
Because we are no longer incrementing SQN after the tuple is generated,
milenage_test's expected output after doing an AUTS resync to 31 changes to the
next SQN = 32, the SQN used for the generated tuple.
(BTW, a subsequent patch will illustrate AUTS in detail.)
osmo-auc-gen now needs to pass the user requested SQN less one, because the SQN
will be incremented befor generating the auth vector. Also the SQN remains the
same after generating, so SQN output needs less decrementing. Note that the
expected output for osmo-auc-gen_test remains unchanged, hence the same input
arguments (particularly -s <sqn> and -A <auts>) still produce the same results.
Note: osmo-hlr regression tests will require adjustments when this patch is
merged, because it must now pass desired_sqn - 1 instead of just desired_sqn.
See osmo-hlr change-id I4ec5a578537acb1d9e1ebfe00a72417fc3ca5894 .
Related: OS#1968
Change-Id: Iadf43f21e0605e9e85f7e8026c40985f7ceff1a3
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Upcoming patches will change the way SQN are incremented. Change the SQN
related output by osmo-auc-gen so that it also makes sense after these changes,
and so that its output is proven to remain unchanged for the same arguments:
Always show the SQN used for vector generation when a UMTS vector was generated.
Don't show the next SQN, it will not make sense anymore (see later patches).
The adjustments of expected output of osmo-auc-gen_test illustrates how the
output changes.
Related: OS#1968
Change-Id: I35d9c669002ff3e8570e07b444cca34ce57c3b0c
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There are some projects, such as GR-GSM and OsmocomBB, which would
benefit from using one shared implementation of GSM 05.03 code. So,
this commit introduces a new sub-library called libosmocoding, which
(for now) provides GSM, GPRS and EDGE transcoding routines, migrated
from OsmoBTS.
The original GSM 05.03 code from OsmoBTS was relicensed under
GPLv2-or-later with permission of copyright holders (Andreas Eversberg,
Alexander Chemeris and Tom Tsou).
The following data types are currently supported:
- xCCH
- PDTCH (CS 1-4 and MCS 1-9)
- TCH/FR
- TCH/HR
- TCH/AFS
- RCH/AHS
- RACH
- SCH
Change-Id: I0c3256b87686d878e4e716d12393cad5924fdfa1
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Change-Id: Iae830d716f01810972edbef14fc5383ac647d0ea
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Change-Id: Ie10c47ee952f253b1ba77ecf6e79f2c033545bc1
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This change makes the conv_gen application more interactive
and flexible, allowing to generate not only code definitions
but also the test vectors and header files in the future.
Moreover, it becomes possible to select exact code family,
such as GSM, GMR etc.
Change-Id: I0b476b00234c17f78b41d695cf3bfd13edb64c28
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FreeBSD 11.0 uses clang version 3.8.0 which spits various warnings
during libosmocore compilation. Let's clean this up a bit.
Change-Id: Ic14572e6970bd0b8916604fabf807f1608fa07e5
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In the -h help output, list the names of available algorithms.
In case of option parsing failure, also print help() (so that e.g. for a typo
in the algorithm, the list of algorithms is printed along with the error
message).
If there are -2/-3 or -a missing, show an error message that explains this.
Change-Id: I76732b28d7a553a6293d1707fe398d28b5ef4886
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When calculating a re-sync vector using AUTS, osmo-gen-vec used to print
SQN.MS + 2, the new SQN after vector generation, labeled 'SEQ.MS'.
Firstly, s/SEQ/SQN.
Secondly, print SQN.MS as umts.sqn - 2, which is the actual SQN recovered from
the AUTS. As explained in the comment, SQN.MS + 1 is used to generate the
vector, and then umts.sqn is increased a second time to indicate the next SQN.
With AUTS calculated from SQN.MS == 23, the output was:
AUTS success: SEQ.MS = 25
Output now:
AUTS success: SQN.MS = 23, generated vector with SQN = 24, next SQN = 25
Change-Id: I881bbe8246a5e7d3a5065b4b5b533255723b1a9e
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GSUP transmits AUTS for UMTS authentication procedures, and OAP uses the same
procedures to authenticate. osmo-gen-vec is a utility program that passes AUTS
to our osmo_auth_gen_vec_auts() API.
According to 3GPP 33.102 6.3.3, AUTS = SQN^AK || MAC-S, which are 6 || 8 == 14
bytes. This is confirmed by 24.008 9.2.3a where the TLV has 16 bytes, TL = 2
and AUTS being the V = 14.
It is not harmful for milenage_gen_vec_auts() to pass two more AUTS bytes. But
writing 16 bytes to a GSUP struct is a potential problem when passing in a 14
byte long AUTS buffer to the GSUP API, which then reads past the AUTS buffer.
The API implies the length, so far to be 16, so passing in a 14 byte buffer to
GSUP would require copying to a larger buffer first.
Fix this by using a length of 14 for AUTS everywhere instead.
This constitues an ABI breakage, we may handle it as a "fix before an official
release", otherwise we need a version bump.
The OAP protocol document has also been updated, needs an update in the
osmo-gsm-manuals as well.
Change-Id: If25b173d9ec57ea4c504d860954912b7d82af455
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This change separates the convolutional code definitions from the code
generator logic, allowing us to make further changes in more specific
way. For example, adding some new codes, you change the conv_codes.py
only because such change isn't related to the generator.
Change-Id: I3428561251b7d7a180d1e9b6fcaad50bdbbc37fa
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This change introduces the memory usage optimization, mentioned
in d2d9760c08f35a231d32f0ebeb73b2927e5573b3. The aim is to make
code generator able to detect, whether the same tables are used
by several convolutional code definitions, and prevent one from
writing these tables multiple times.
For now, the detection process isn't fully automatic, so all
shared polynomials should be placed inside the 'shared_polys'
dictionary, for example:
shared_polys = {
"xcch" : [
( G0, 1 ),
( G1, 1 ),
],
"mcs" : [
( G4, 1 ),
( G7, 1 ),
( G5, 1 ),
],
}
Change-Id: I84760f5cdfdaece376b801d2e6cb2954ee875a3b
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we wanted to check for !rmsg, but used to check for !msg, missing error
returns from read_record_nr().
Change-Id: I79b6a94b1aa947c8329317b0626865c3cd4159c1
Fixes: Coverity CID 57672
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This change finally makes the script able to be executed
in Python 3 environment. Due to new Python 3 restrictions,
the reduce() should be imported explicitly.
Change-Id: Icbc81c29f1a226aeed2c1245a5d60809fe124005
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This is mostly a code style change, but it also
increases the compatibility with Python 3.
Change-Id: I5c8271d973f766aeb9cbcab30c4eddfdab54fcbb
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Change-Id: Ie1452342f524a8b60f2babc07398a1d9c9e06aa3
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Change-Id: I3327b92715744af4ef61496ef0121555d9d24799
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Change-Id: I0ea7151f4e8119a8798a9e129b951559e56b0d93
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To keep the generated tables readable, line with should be limited.
So, now there are the following limitations:
- _print_term(): up to 12 numbers per line,
- _print_puncture(): up to 12 numbers per line,
- _print_x(): up to 4 blocks per line.
Change-Id: I95256c4ad402a3c088bdb6c5a5cda8b17c31881c
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Instead of generating every convolutional code into a separate
file (such as conv_xcch_gen.c, conv_cs3_gen.c), it is better to
have a single file, containing all definitions, because as many
convolutional codes we add, as many entries we will have to add
into 'src/gsm/Makefile.am'. This approach increases readability
of the Makefile.am, and also makes us able to share some data
between some convolutional code definitions.
For example: xCCH, RACH, SCH, TCH/F, both CS2 and CS3 may use
the same *_state[][2] and *_output[][2] arrays within a single
file. This optimization is currently WIP.
Change-Id: Ib4e4ee5fdde38429e68e3b2fa50ec03a18f59daa
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Change-Id: I8550910b9f5c16efc6f15f23c7ee52122c588752
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When generating some authentication vectors using the osmo-auc-gen
utility, it used to print values like this:
AUTN: f7 55 bc 47 de d0 00 00 f9 ed 4b 3f 6c 2a 97 6f
which is quite difficult to copy+paste on the terminal. Now it
generates the following format:
Change-Id: I2805615e0c2087ca632e0658b37a9e06929620b6
AUTN: f755bc47ded00000f9ed4b3f6c2a976f
Reviewed-on: https://gerrit.osmocom.org/164
Reviewed-by: Harald Welte <laforge@gnumonks.org>
Tested-by: Jenkins Builder
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The script does not work with python3:
$ python3 utils/conv_gen.py
File "utils/conv_gen.py", line 124
def _print_term(self, fi, num_states, pack = False):
Second there is no 'python' on FreeBSD and one needs to select
the major version to use.
GEN conv_cs3_gen.c
GEN conv_xcch_gen.c
GEN conv_cs2_gen.c
python: not found
python: not found
python: not found
By using python2 we solve both issues. On Debian python2 is located
inside the python-minimal package.
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they return an osim_file_desc, and not an osim_file, so fix the naming
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this is an attempt to fix the FreeBSD build
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Fixes:
In file included from ../../../include/osmocom/core/msgb.h:25:0,
from ../../../include/osmocom/sim/sim.h:4,
from ../../../src/sim/reader_pcsc.c:30:
../../../include/osmocom/core/bits.h:6:35: fatal error: osmocom/core/bit16gen.h: No such file or directory
#include <osmocom/core/bit16gen.h>
In file included from ../../include/osmocom/core/msgb.h:25:0,
from ../../utils/osmo-sim-test.c:26:
../../include/osmocom/core/bits.h:6:35: fatal error: osmocom/core/bit16gen.h: No such file or directory
#include <osmocom/core/bit16gen.h>
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* PCSC is enabled by default
* --enable-pcsc is enabling it
* --disable-pcscis disabling it
* Fix the makefile of the utilities to not build pcsc and
use the right header files/libraries.
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if we expect rmsg to be set, we should check for it...
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