Commit Graph

1463 Commits

Author SHA1 Message Date
Anders Broman 60bf845f25 csn1: Fix warning with -Wmissing-prototypes
Port of wireshark.git 2e52e2ac997ca58caabee3270b5a6c3f96159ff0.

Ported-by: Pau Espin Pedrol <pespin@sysmocom.de>
Change-Id: Ic69a75ce3f01cea326139f678b963110e895c356
2020-01-28 13:41:21 +01:00
Pascal Quantin c515551625 csn1: Fix an infinite loop in CSN.1 dissector when having more than 255 padding bits
Port of wireshark.git 8b5aa913711b32b1e1bc707919d2a98c1875d443.

Ported-by: Pau Espin Pedrol <pespin@sysmocom.de>
Change-Id: I7f6aecc2c0f300c1a77cd683652969d3f1aa5794
2020-01-28 13:40:14 +01:00
Pau Espin 5b71697618 csn1: Fix pedantic compiler warnings in csn.1 dissectors
Port of wireshark.git commit 6aca10831f86c562970b13efa811f46e25ee3091.

    From Mike Morrin:
    Fix pedantic compiler warnings in csn.1 dissectors.

    There is some tricky casting going on in csn.1 structures.  To eliminate all
    the warnings, the function pointers needed to be moved out of the object
    pointer unions.  Fortunately macros (mostly) hide these changes from the
    protocol dissector tables.

    https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7686

    svn path=/trunk/; revision=44899

Change-Id: Ia1a8c50c4b024ca6df4e3fbbf891cd33591ccc9b
2020-01-28 13:38:42 +01:00
Pau Espin 7cce825fa4 csn1: Allow CHOICE elements to re-process the bits used for the choice
This is a port of wireshark.git commit
2f024256bf337400ef3a82fa75e6d48d5707e059.

From 78516187d821b8d19d16987b1d6bc855ee7cbe10 Mon Sep 17 00:00:00 2001
From: Sylvain Munaut <tnt@246tNt.com>
Date: Sat, 4 Feb 2012 10:00:22 +0100
Subject: [PATCH 4/6] packet-csn1: Allow CHOICE elements to re-process the bits used for the choice

We may want to display more detail, or the sub-element should be
displayed with its headers or whatever ...

Change-Id: I3a5a95d5f918b8f17a2400a6d0c4d855ecacea7e
2020-01-28 13:38:42 +01:00
Pau Espin 98e4c53cad csn1: Extend CSN_SERIALIZE to allow 0 bit of length
Port of wireshark.git 2f024256bf337400ef3a82fa75e6d48d5707e059.

From c6ee558d3bb00bfd25cca7c534448bf60df3c7cf Mon Sep 17 00:00:00 2001
From: Sylvain Munaut <tnt@246tNt.com>
Date: Sat, 4 Feb 2012 10:24:01 +0100
Subject: [PATCH 6/6] packet-csn: Extend CSN_SERIALIZE to allow 0 bit of length

In some coding there is no 'length' field at the top of a serialized
block, or it's more complex than a single field, in which case we
have to rely on the serialize decoder to consume the correct number
of bits.

We extend the CSN_SERIALIZE processing so that if a '0 bit' length
field is specified, then the length is not displayed and the
consumed bits by the serialize function is taken as the length
at posteriori.

The processing keeps the same behavior for any length > 0.

Change-Id: I9fadc99218594447001f7bb9943f4514b9877799
2020-01-28 13:38:42 +01:00
Jeff Morriss c0b4f4a633 csn1: shuffle decrements of remaining_bits_len
So that they always occur next to an increment of bit_offset.

Port from wireshark.git 1c81971d4292438ffdf83e9f9b9ab96c133c785b.

Ported-by: Pau Espin Pedrol <pespin@sysmocom.de>
Change-Id: I7474e9d632e068d6e33b0a502b81d4fff1f48802
2020-01-28 13:37:50 +01:00
Anders Broman c0190c8a5a csn1: packet-csn1.c:179: warning: 'pui8' may be used uninitialized in this function
Port from wireshark.git commit fd9f182f4b13a3d81b1b5c797a6e4b9d6d327fdd.

Ported-by: Pau Espin Pedrol <pespin@sysmocom.de>
Change-Id: I37f5f3732f92cd7340af8ac1e04383f3e45e7636
2020-01-28 13:34:36 +01:00
Anders Broman 72c102acf8 csn1: Update M_NULL CSN_DESCR to match wireshark
Port from iwireshark.git commit cc6d4341e65ef2e8d8488fe0ac0f236ece0dd844.
It looks like it makes no difference to us now, but other EGPRS messages
may use it in the future.

Ported-by: Pau Espin Pedrol <pespin@sysmocom.de>
Change-Id: I34039370c292e62790a38abb59f55c69fffa88e8
2020-01-28 13:34:08 +01:00
Pau Espin cdbc5dbd1c tests/rlcmac: Add test to showcase that decode_gsm_ra_cap() fails
Currently code using that function in osmo-pcu is disabled, allegadly
because SGSN was sending incorrect values, but it looks more like a CSN1
issue.

Related: OS#1525, OS#3499
Change-Id: I92c86397f988afaa791871d823a45fa85054f3bb
2020-01-28 13:29:42 +01:00
Pau Espin ea39fade07 tests/rlcmac: Don't check stderr output
Current stderr output is empty anyway, and not checking it allows
enavling different log levels to easily debug issues.

Change-Id: I5b12e919e08a6eeaad31a459e5a15fdee4d76a61
2020-01-24 13:01:23 +01:00
Pau Espin 87bfbe4fe2 tests/rlcmac: Use osmo_hexdump to print buffers
Old method takes lots of lines of codes and prints inn unconfortable way
because left-trailing zeros are dropped, making it difficult to split in
bytes.

Change-Id: I56c24f934824e4e52a91a7273aec384b2e15aa67
2020-01-24 12:42:03 +01:00
Pau Espin 5cb002f0ef tests/rlcmac: Fix missing commas with unexpected results
Change-Id: Ia0f8cc224a4c38e80699f834fd83d4c0d99322ea
2020-01-24 12:42:00 +01:00
Pau Espin 99c437b7c7 tests/rlcmac: Memzero decoded struct
Otherwise final output is undefined.

Change-Id: I9b501b8a99473b4d79279f8a3a9854e0b2eb3284
2020-01-24 12:34:50 +01:00
Pau Espin 54681c3ffe tests/rlcmac: print test name at the start
Change-Id: Ib8f0fcbd6bb68d77727c021f0d90d5248e895772
2020-01-23 21:59:23 +01:00
Vadim Yanitskiy bd0b0b3242 pcu_l1_if.cpp: fix NULL-pointer dereference in imsi2paging_group()
Passing NULL to strlen() would lead to a segmentation fault.

Change-Id: I838e3a21a3b25c2bc8260f67d156c6cc284f4456
Fixes: CID#207484
2020-01-16 00:25:54 +07:00
Pau Espin 771de1f439 Support PAGING-CS and PAGING-PS on on PTP-BVCI
Related: OS#2403
Change-Id: I5c52b5af740460c48bb3ba858243b1d20e624268
2020-01-06 10:26:46 +00:00
Pau Espin 65a0d1d19b Support Gb PAGING-CS
The paging is sent over PACCH towards MS with an active TBF.

Related: OS#2406
Change-Id: I9501e02e1d7f6944497e724dbccb9a19c3f5221f
2020-01-06 10:26:46 +00:00
Pau Espin 5530f12f71 Allow Gb PAGING-PS without P-TMSI
P-TMSI is optional IE, but IE is mandatory and hence always available.
Since the encoding is actually a Mobile Identity, the IMSI is used in
case P-TMSI is not available.

Change-Id: I4dbf8db04e81f98352a42ce34a5d91326be9bfd1
2020-01-06 10:26:46 +00:00
Pau Espin d7c3265223 Pass paging group instead of imsi where later is not needed
Change-Id: Id0663a81f439f2d0b893b0d34f85a6db1927ef8e
2020-01-06 10:26:46 +00:00
Pau Espin b507e428e8 Bump version: 0.7.0.62-fbfa-dirty → 0.8.0
Change-Id: Ic5e69a396df659933fd4d50298b9925e837a6861
2020-01-03 19:40:02 +01:00
Pau Espin fbfab297ee Split identity_lv param into mi+mi_len
It's not really needed to have those together in some function calls,
and makes it more difficult to follow the code. Furthermore, new callers
not having content already aligned (len+value) will be using these
functions in forthcoming commits.

Change-Id: Ifb9d3997bfb74b35366c3d1bc51ce458f19abf16
2020-01-01 16:10:15 +00:00
Pau Espin db12f254ce Log BVCI PTP value upon msg recv
Change-Id: I47c5902112d568cd5a48e003010d8085b02d64e8
2020-01-01 16:10:05 +00:00
Pau Espin 506eb23dc5 fix typo in log message
Change-Id: Ib6fc4625242d855193b62b561624b23b265648b9
2019-12-31 17:01:34 +00:00
Pau Espin 585cfb28b8 Fix trailing whitespace
Change-Id: I0515b5c8f6744fa501de88fa7808b7fc91981f0e
2019-12-10 20:02:21 +01:00
Pau Espin 3f064f516d prs_bssgp_pcu.cpp: Mark priv funcs as static and remove trailing whitespace
Change-Id: I93b7ee33cc33c773675c85ace7b8f1afa86fbf06
2019-12-10 17:09:51 +01:00
Pau Espin 32499b614b pcu_l1_if: Check pag_req id_lv len fits buffer
Related: OS#4316
Change-Id: I803e1d2577a0d210e74feb5ca4c216375a5024ea
2019-12-09 13:55:14 +01:00
Pau Espin 30f6617c79 tbf_dl.cpp: Fix typo in log line
Change-Id: I9fdea4246c95897f3e72604981597db828a219a3
2019-12-04 18:11:52 +01:00
Pau Espin d0fc9e80fe Remove dash from name used in VTY cmd prompt
Others projects don't contain a dash in there, and it seems to cause
problems with TTCN3 VTY expectations.

Change-Id: I3430abb5fc622dec293457466e760de95fa3a05c
2019-12-02 11:14:26 +00:00
Harald Welte 3a61b920f2 manual: Add missing documentation for '-i' command line option
Change-Id: Iec0f2ecd610e63baba46a63d3e1a0979a9d8c5a8
2019-12-01 14:32:54 +00:00
Harald Welte f6d282822e manual: Fix documentation missing "-D" command line option
Change-Id: I2fd0b6f52ddc6931f413921b45d9756cb1fe456d
2019-12-01 14:32:54 +00:00
Harald Welte c925ccccfc manual: Fix copy+paste error
Change-Id: I27744628edeca6895f50f84c6f2f04c2e6e2de0b
2019-12-01 14:32:54 +00:00
Vadim Yanitskiy 657a4c0ccd VTY: cosmetic: use osmo_talloc_replace_string()
Change-Id: Id09c7d24b48ddecfa96404c3e75330465a11f830
2019-11-30 20:17:25 +07:00
Vadim Yanitskiy fc75cc0ecf VTY: add warning about changing PCU socket path at run-time
Change-Id: I7cee2d782bd3dfc2cc8d2febc16dca905dcc294e
2019-11-30 20:17:21 +07:00
Pau Espin 1e6eb30f51 Clarify (M)CS related VTY attributes
Some are used to control (M)CS values for downlink while some do it for
uplink. Let's make clear which one is used for what. Take the chance to
document the fields a bit better than they were.

Some more information about the origin of cs_downgrade_threshold can be
found in the commit introducing it: 70b96aa232.

Related: OS#4286
Change-Id: I4e890e924b094a1937fbd3794de96704cf0421a8
2019-11-28 17:11:56 +01:00
Pau Espin 1d8497ba6a doc: vty: Update osmo-pcu_vty_reference.xml
Change-Id: I287893cabf0468f0c110eb751eb887f58ff238c0
2019-11-28 17:09:09 +01:00
Vadim Yanitskiy ffebd24456 PTCCH: properly handle RACH.ind for PCU_IF_SAPI_PTCCH
Change-Id: I482d60a46b9d253dfe0b16140eac9fea6420b30c
Related: OS#1545
2019-11-23 17:42:45 +07:00
Vadim Yanitskiy 17954da56c pcuif_proto.h: extend RACH.ind with TRX / TS numbers
Since there can be multiple PDCH channels configured on different
timeslots, different TRXes, and BTSes, the PTCCH/U handling code
in OsmoPCU needs to know the exact origin of a given RACH.ind.

Otherwise, it is not known which subscriber originated a given
PTCCH/U indication, and hence it is impossible to send PTCCH/D
Timing Advance notification properly.

Fortunately, we can extend the RACH.ind message without even
bumping the protocol version, because every single PDU has a
fixed size defined by the largest message - INFO.ind. In case
if the actual message payload is smaller, the rest is filled
with a constant padding byte (0x00).

Older versions of OsmoPCU will consider the new fields as padding,
while the messages from older OsmoBTS versions will always have
both fields set to 0x00. Since C0/TS0 cannot be configured to
PDCH, this can be easily detected on the other end.

Change-Id: If209001885ffb14b64a8e808df3700d85a4b2ef9
Related: OS#1545
2019-11-17 02:58:35 +07:00
Vadim Yanitskiy 78f58618f3 PTCCH: properly handle RTS.req for PCU_IF_SAPI_PTCCH
Change-Id: Ib204acce1a7e33f6651b9da2a7b4a9b9ae461093
Related: OS#1545
2019-11-17 02:58:31 +07:00
Vadim Yanitskiy bd0dac3783 PTCCH: implement basic message codec and API
Change-Id: Id79e95aafdde4a71977c64385fce48b729a51ca9
Related: OS#1545
2019-11-17 02:35:18 +07:00
Vadim Yanitskiy 0bf622e057 gprs_bssgp_destroy(): fix memleak and NULL-pointer dereference
So far there was a memory leak, because free()ing 'the_pcu.bctx'
would cause ASAN to complain. And that's reasonable, because it
needs to be freed properly. Moreover, 'the_pcu.bctx' may simply
be uninitialized in some cases, e.g. when OsmoPCU is terminated
before connecting to the SGSN.

Let's use the new bssgp_bvc_ctx_free() from libosmogb.

Change-Id: I274e79e1746c7678b81720ec11e8a564befe38ba
Depends: Ia78979379dbdccd6e4628c16f00d0c06d9212172
2019-11-10 09:04:21 +00:00
Vadim Yanitskiy fd734de4d1 GprsMs::update_cs_ul(): clarify the meaning of old_link_qual
Change-Id: Iad703a573621c64613b9b8c229079dc63fcaeb9e
2019-11-08 06:20:55 +07:00
Vadim Yanitskiy 87b6e7dbed tests/tbf: suspend warnings about the link quality measurements
Share a single instance of 'pcu_l1_meas' between all unit tests,
set initial measurement values in main(). This way we can get
rid of the following warnings:

  Unable to update UL (M)CS CS-X because we don't have link quality measurements.

Change-Id: I1c82076df6cd0833d243e1e6afb140bae3bd2ec9
Fixes: OS#3828
2019-11-08 04:44:07 +07:00
Vadim Yanitskiy ce27d1e126 BSSGP: properly print BVCI for signalling messages (BVCI=0)
Change-Id: I4ac0f48d2e62cd0545e8a1e1b26c9e43ef5e8dde
2019-11-08 04:18:46 +07:00
Vadim Yanitskiy ef444142c8 BSSGP: do not reject SUSPEND ACK / NACK messages
Both BSSGP SUSPEND ACK and NACK messages use BVCI=0 (signaling),
which always exists. Claiming that BVCI=0 is unknown is wrong.

Instead of adding both BSSGP_PDUT_SUSPEND_{ACK,NACK} to the 'if'
statement, let's rather avoid rejection for all BVCI=0 messages,
as there may be other unlisted message types.

Change-Id: I780657c1e8f67e0bef0e92a31db7ba61b57d7ec4
Related: OS#4111
2019-11-08 04:11:20 +07:00
Pau Espin 05bca3524a Fix assertion hit upon CCCH Paging Request
Recent commit added an assertion to check for buffer boundaries and it
actually gets hit.
One of the 2 code paths calling pcu_l1if_tx_pch() was passing a buffer
of 23 bytes while one of maximum 22 is expected (because plen is not set
in the buffer but set inside pcu_l1if_tx_pch()).
So it seems before the assert, that code path was actually writing 1
byte outside the boundaries of data buffer, since bitvec_pack() uses
data_len field of bitvec.

Related: OS#4228
Fixes: 8dc09e73d0
Change-Id: I84c5dfd4d5580e9d4c00ed21887cb51bd9abbd2e
2019-10-16 14:36:28 +02:00
Alexander Couzens b3b0c49d1c encoding: fix space, tabs
Change-Id: I80ac88f50bfedfd2b86d548883313b5a187b1e8f
2019-10-09 17:14:17 +00:00
Vadim Yanitskiy cef2f843b4 VTY: fix command 'show tbf all': properly filter TBFs
For a long time the VTY command to show all active TBFs was broken.
The TBF filtering (by allocation origin) logic allows one to show
TBFs allocated on CCCH, PACCH, or on both of them. In the latter
case we have been checking whether a TBF was allocated on both
logical channels at the same time.

Let's fix this by passing a flag-mask instead of boolean arguments.
To be able to use GPRS_RLCMAC_FLAG_* definitions from "tbf.h", let's
exclude them from "#ifdef __cplusplus ... #endif" block.

Change-Id: I1c9f401368af880a97d32905c4cce0da481ffc21
2019-10-09 22:00:54 +07:00
Vadim Yanitskiy afbf189ef2 VTY: refactor pcu_vty_show_ms_all(): use show_ms()
Change-Id: I72aa1a1de22602a3ad2a4d19604ae0935c88c750
2019-10-09 20:26:47 +07:00
Pau Espin d752d7cebe pcu_l1_if.cpp: Replace value 23 with libosmocore's GSM_MACBLOCK_LEN
Change-Id: Ieec3dd028fffa1a735afaaf3f93da0a1202d122a
2019-10-07 21:04:19 +02:00
Pau Espin 8dc09e73d0 pcu_l1_if.cpp: Imm Assign PCH: clarify size of different items
Change-Id: I32876858e3e93951e965b0fc7875c95c1f36f3ac
2019-10-07 21:04:19 +02:00