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sections: ctrl, gb, gsm, vty
Change-Id: Iac211b5cd8504da36b699777b95a2448dd7c3e70
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The ipa.c file already contained code to parse an ID RESPONSE into the
'struct ipaccess_unit', but it didn't so far contain code to put
together an ID RESPONSE packet based on that structure. Let's change
that with ipa_ccm_make_id_resp() and a helper wrapper
ipa_ccm_make_id_resp_from_req().
Change-Id: Icbcd8827a75fd5f3393351c1ca372de85275ad35
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The create function to generate the RESET ACKNOWLEDGE
message is not accessible from outside, as it does not
appear in limosmogsm.map. It also has not testcase.
This commit adds gsm0808_create_reset_ack() to the
map file and also adds a testcase.
Change-Id: I82d3411484f82b4a9205d407fa0442244678f183
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gsm0808.h/c lacks functionality to generate BSS_MAP_MSG_ASSIGMENT_RQST messages.
These messages are required if the code is used in an MSC implementation.
This commit adds a gsm0808_create_assignment() function, that generates an
A/AoiP BSS_MAP_MSG_PAGING message.
Change-Id: I4d1d455a1e1cf95407e23ded7b7defbcf2dd6ff0
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gsm0808.h/c lacks functionality to generate BSS_MAP_MSG_PAGING messages. These
messages are required if the code is used in an MSC implementation.
This commit adds a gsm0808_create_paging() function, that generates an A/AoiP
BSS_MAP_MSG_PAGING message.
Change-Id: I9afecf0109305ca5153bf081bb29cd94071dd2b7
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gsm0808.h/c lacks functionality to generate CIPHER MODE COMMAND messages. These
messages are required if the code is used in an MSC implementation.
This commit adds a gsm0808_create_cipher() function, that generates an A/AoiP
CIPHER MODE COMMAND message.
Change-Id: I8eb1c357860c3e740b0f5d17e1c256bc87920958
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The planned support for true A over IP requires the encoding of
the a Cell Identifier List element (see also BSS_MAP_MSG_PAGING).
This commt adds encoding/decoding functionality and tests for
the element mentioned above, however, it is not yet actively used.
Change-Id: I625245dd1dd396fc2bc189e8cd2c444a33042528
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The planned support for true A over IP requires the encoding of
the an Encryption Information element (see also BSS_MAP_MSG_CIPHER_MODE_CMD).
This commt adds encoding/decoding functionality and tests for
the element mentioned above, however, it is not yet actively used.
Change-Id: I8262050a9d9fd3f17462cfbb046c6e034dccc6fb
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The planned support for true A over IP requires the encoding of
the a Channel Type element (see also ASSIGNMENT REQUEST).
This commt adds encoding/decoding functionality and tests for
the element mentioned above, however, it is not yet actively used.
Change-Id: Id0e2164d84b8cbcc6fe6a090fc7f40a1251421d7
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the classic A implementation in libosmocore lacks support for AoIP
message elements. This patch adds support for AoIP by adding a set
of new gsm0808_create_..., which support the missing AoIP message
elements
Change-Id: I77f866abec1822d19871052f3c647ad782785b34
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The planned support for true A over IP requires the encoding and
decoding of a so called "Speech Codec Element" element.
This commt adds parsing functionality and tests for the element
mentioned above, however, it is not yet actively used.
Change-Id: I0e1e2edf47adaa45b22d4b0bcae3640dba7ca200
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The planned support for true A over IP requires the encoding and
decoding of a so called "AoIP Transport Layer Address" element.
This commt adds parsing functionality and tests for the element
mentioned above, however, it is not yet actively used.
Change-Id: I57933b0a06a3f54ec2a41e6ecb6ced9fbbc89332
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The state check in lapd_dl_reset causes some buffers
never to be released. Using talloc report LAPD UA
message buffers are never released after each call
and cause a memory leak.
Change-Id: I2799b70623f2ec4dbc725eb213e332e98da02a3e
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Expand 3GPP TS 52.021 §9.4.43 Probable Cause with Osmocom-specific value
for PCU version reporting to enable sending it via OML alarms.
Change-Id: If57459c0610f2c7b36d599b13087c8deef8bdd9e
Related: OS#1614
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Add human-readable names for Message Types from 3GPP TS 52.021 §9.1
Related: OS#1614
Change-Id: Ide8202b4387351f57ceee34a9eb8c30aef09a663
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Add human-readable names for Attributes from 3GPP TS 52.021 §9.4
Change-Id: I861247c01557dac7e484ef6fb9b170f69c8a7f55
Related: OS#1614
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Ensure that a changed conv_gen.py and/or conv_codes_gsm.py result in
regeneration of the gsm0503* generated sources. Before this patch, manual
cleaning of the generated files was necessary to benefit from a code update.
Change-Id: Ib4328662c21280c0ea6aa9391a64ada2c6598704
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Composing the message type string requires knowing the protocol discriminator.
To ease printing the message type, add this function to switch between the
defined value_string[]s depending on pdisc.
Also publish the message type value_string[]s -- without inline functions to
access them because it is anyway more convenient to use
gsm48_pdisc_msgtype_name() instead.
Since gsm48_pdisc_msgtype_name() is nontrivial, do not add as inline function
-- in case the message type is not known, it needs a static string buffer.
Change-Id: I0fca8e95ed5c2148b1a7440eff3fc9c7583898df
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I often want to log the protocol discriminator in the openbsc debug log. It's
more useful to get the name directly instead of looking it up every time.
Change-Id: I0f053e2a4360b27ffccda7cf82469fb1b1cbb3ae
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To ensure that the IND index appended to SEQ does not affect the SEQ, the check
should read '>= seq_1', not '>'.
Change-Id: Ib1251159eee02aa07fae1b429ffec2e4604bf6a8
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So far we incremented SQN by 1, which doesn't match the procedures described in
3GPP TS 33.102. An IND (index) denotes a non-significant part of SQN, and the
significant SEQ part needs to be incremented.
In OsmoHLR we furthermore want to use the "exception" suggested in annex C.3.4,
so that each HLR's client has a fixed IND index. In other words, we will not
assign IND cyclically, but keep IND unchanged per auth vector consumer.
Add 'ind_bitlen' and 'ind' to the osmo_sub_auth_data.u.umts structure and
increment SQN accordingly.
Add a comment explaining the details.
Because 'ind_bitlen' is still passed as zero, the milenage_test does not change
its behavior, which is a feature I want to clearly show in this patch. The test
will be expanded for the newly implemented SQN scheme in a subsequent patch.
Adjust osmo-auc-gen.c to still show the right SQN and SQN.MS -- because it is
passing ind_bitlen == 0, osmo-auc-gen can rely on single increments and know
SQN.MS is sqn - 1. Note that osmo-auc-gen_test output remains unchanged.
Related: OS#1968
Change-Id: Ibc97e1736a797ffcbf8c1f7d41c5c4518f4e41bf
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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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We don't really use state numbers without bounds check into string
tables since March 2010, when value_string became part of libosmocore.
It's time to catch up, 7 years later...
Change-Id: I1dac7b4cb441a1119cc167112521e8b8aae62e63
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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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Previously lapdm_datalink->entity->mode was dereferenced without
checking if correct entity is present. This might lead to
segfault. Check it explicitly before dereferencing, log error and
gracefully return if necessary.
Change-Id: I0361e3731e86712b415a370cab1128d611988f56
Related: OS#1898
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Change-Id: Ie38bae32372dc41e1902a8f6f0bc550ae515cfb8
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It is in the public header file and allows to easily bind it from
other languages (without having to go through the abstraction).
Change-Id: I0128d529c52ec030cfb87b0aff3c69cadf2c59d2
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Related: OS#1593
Change-Id: If943731a78089f0aac3d55245de80596d01314a4
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The wrong expectation caused OsmoHLR to fail on Auth Sync.
Change-Id: I277fb3d407396dffa5c07a9c5454d87a415d393f
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Change-Id: Ic29b588b72893821d73fe90ecc16c6bf78d5a360
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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 lapd_t200_cb() The RELEASE INDICATION is transmitted before
the MDL ERROR INIDCATION, this prevents the MDL ERROR INDICATION
from being sent because the RELASE INDICATION close to connection
eraly. This commit puts the messages into the correct order.
Change-Id: Iae74777138fc27828f511e3aa321d1981861f4a5
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when the lapd core is in state LAPD_STATE_SABM_SENT, and the
retransmission counter exceeds (link down) lapd_t200_cb() will
send an RELASE_INDICATION and an MDL_ERROR_INDICATION to L3.
This action is done before the state is processed. This seems
to be no problem with standard retransmission counts (n200),
but may cause timing problems that lead to deadlock states when
custom timer configurations are in use. (Ericsson RBS).
This commit moves the functions calls for sending the indications
mentioned above to the very end of the if branch to relax the
timing again. (See lapd_t200_cb())
Change-Id: I1c1beb3701b19744a3ce9946abca7767d20a0b6a
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milenage_gen_vec() has parameter ordering of (..., auts, rand_auts, rand).
osmo_auth_gen_vec_auts() has (..., rand_auts, auts, rand), but actually feeds
args in the same order, so that its rand_auts becomes auts, and its auts
becomes rand_auts.
Interestingly enough, API user osmo-gen-vec.c also adheres to this misordering
and in turn passes auts for osmo_auth_gen_vec_auts()'s rand_auts and vice
versa, so that it matches milenage_gen_vec().
So both the implementation (milenage_*) and the API user use the same ordering,
just osmo_auth_gen_vec_auts() and osmo_auth_impl{ .gen_vec_auts() } in-between
have the argument names swapped.
Any current user of this API would need to adhere to this swapping or will not
get successful AUTS resolution to a SQN. So the least impact fix is to rename
the args without any actual functional change.
So swap the names rand_auts and auts for osmo_auth_gen_vec_auts() and
osmo_auth_impl{ .gen_vec_auts() }. (Also adjust API doc ordering)
Change-Id: I0dcbd49759fc32d3b8974102dbd1d6703364ebf4
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The debug output of lapd core has no references to the dl objects,
since we have multiple links, seeing which action is for which
object is impossible. This commit adds pointer references (dl=%p)
to each log line.
Change-Id: I3024d1cbd58631e2abac4ce5822528e2e6e15fda
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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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Add special cause for alerts produced by external processes.
Change-Id: Idd7ee085321f8172c72ecfdba320186049f4d988
Related: OS#1615
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Change-Id: I69f2891a2bea6f87f079b6778aa01ee27a25001b
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Change-Id: If56b521429af497ddd5a47170eb2c085b1fb78ba
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Change-Id: I71413fbe703e459782a235e5b1d8487265de3780
Related: OS#1615
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Mark abis_nm_debugp_foh() function superseded by macro with the same
name as deprecated.
Change-Id: I2d3ea2b56aff6b687f72f832360b8cb8a24164e9
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oap_test.c
Change-Id: Id524327b3f44e22e3aa44c5e8e4965b084cb326a
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It accept fixed number of arguments including va_list instead of variable
number of arguments in abis_nm_fail_evt_rep() - similar to vprintff() vs
printf().
Related: OS#1615
Change-Id: Ib293dec1c2de9b664584a8456c782ea7b6dd8555
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Log error cause and state names in case of SABM errors.
Change-Id: I2c7fa276e03f8b14ba41cc1fb6e19d0aae77d127
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Add string representation of Probable Cause Type from 3GPP TS 12.21 §
9.4.43.
Change-Id: I9fe14ed3b5398f59dd06a509e4d419e074cc20a7
Related: OS#1615
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Add 3GPP TS 12.21 § 8.8.2 Failure Event Report function which pack given
vararg string and parameters into msgb.
Change-Id: I58c198d8ea588432c62520928b08f0b2a7035e93
Related: OS#1615
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Add human-readable descriptions to event causes from 3GPP TS 12.21 §
9.4.43.
Change-Id: Id173c978616c98b7831fbafb5401064257f1cf73
Related: OS#1615
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Add functions to copy and merge parsed TLV structures from OsmoBTS.
Change-Id: Ieaaaed19da9c069fe451faa53d24c5b84d7d5615
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Change-Id: I9c3bc15662949654e7bba6aad5488c69ee7d0c45
Related: OS#1615
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