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The RSL SACCH INFO MODIFY / RSL SACCH FILL messages contain a
SI5 / SI6 / SI5bis / SI5ter message. Those SI are (like the SI on CCCH)
sent as UI frame in downlink direction. Since Phase 2, the "L2
pseudo-length field is part of the L3 message, and not stripped /
interpreted at L2.
3GPP TS 44.006 states that a special B4 frame format is used on the
SACCH downlink for UI frames, which is basically a normal B frame, but
with no length field at L2, shifting the length field into L3 where it
becomes the L2 pseudo-length.
From RSL, we need to call a variant of the RR dissector that is able to
decode a L3 message that includes a L2 pseudo-length. This is,
paradoxically, not the "gsm_a_sacch" dissector, as that one is only used
for B-frames, i.e. actual LAPDm ABM frames. We must use the "gsm_a_ccch"
dissector.
See also the discussion in
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14105
as well as https://lists.osmocom.org/pipermail/openbsc/2017-December/011545.html
and https://osmocom.org/issues/3059 for further background information.
Ping-Bug: 14105
Change-Id: Icdad2b7698d5d7d613cacceec6a3d848b946306c
Reviewed-on: https://code.wireshark.org/review/26797
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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I'm not quite sure why this message is missing from the wireshark
dissector. It's not particularly new, at least I don't recall ever
having seen a spec document in the past decade or so that was missing
this message type. Perhaps a simple oversight.
Change-Id: Idb6c53ff6dc6d65f6ca7ce30a89499d8383d01f6
Reviewed-on: https://code.wireshark.org/review/25974
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
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Change-Id: I92c94448e6641716d03158a5f332c8b53709423a
Reviewed-on: https://code.wireshark.org/review/25756
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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RXLEV and RXQUAL fields in RSL "Uplink Measurements" use same scale
format (0-63, 0-7) as RXLEV and RXQUAL in RR. RXQUAL value-string is
moved to packet-gsm_a_common.c in order to use it in both protocols.
Change-Id: Idadd9505225353fec76b9605e2045a5222669475
Reviewed-on: https://code.wireshark.org/review/24663
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
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Added as option with the default value set to TRUE. Dissection is based on
file generated from Tektronix Monitoring Solution for Mobile Networks.
Change-Id: Iedb2e742d1d406bc68e41334cac4a15da443cf3f
Reviewed-on: https://code.wireshark.org/review/22507
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Change-Id: I0ab6056a5241c53dba8b569905e29a9ab9d9f265
Reviewed-on: https://code.wireshark.org/review/22001
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Piotr Tulpan <piotr.tulpan@netscan.pl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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proprietor Huawei
Adding dissection RSL message that corresponds to patent EP2192796 owned by Huawei.
Change-Id: I9fe32370d9b1330f78ac96c1203b6fde3f7784cd
Reviewed-on: https://code.wireshark.org/review/21788
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Based on 3GPP TS 48.058 eMLPP Priority takes bits 1-3 not 1-2.
There is also decalred value_string rsl_emlpp_prio_vals (line 2605)
that contains 8 values not 4 as expected for 1-2 bits.
Change-Id: Iea77f8dbff9af3b25fd298f1a9703c1e34c06d30
Reviewed-on: https://code.wireshark.org/review/21797
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
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Bug: 13251
Change-Id: I56a01e779f7f0eadc8a078f88543269a91148f00
Reviewed-on: https://code.wireshark.org/review/19293
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Activation of (dynamic) PDCH uses some slight extensions of the
definitions found in 3GPP TS 48.058 when used on Ericsson RBS2000 or
Osmocom OsmoBTS.
The extensions are backwards-compatible, so I don't think it's worth to
introduce a preference for this.
Change-Id: I8e28d75bd8be15044a605ced8825b9b074ffbb22
Reviewed-on: https://code.wireshark.org/review/18457
Reviewed-by: Michael Mann <mmann78@netscape.net>
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return real value
Apply mask and bit shift on the returned value.
Change-Id: I00aebc854756f01a25199a259d6d5252abea4349
Reviewed-on: https://code.wireshark.org/review/17958
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Save the RTP payload type and codec and add a dynamic payload. This allows AMR
streams to be correctly analyzed. Together with the AMR codec support you can
listen to the AMR stream as well.
Sponsored-by: On-Waves ehf
Change-Id: If859fd3707b5aa1c9743830f903abe8e1f12ff95
Reviewed-on: https://code.wireshark.org/review/16352
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
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Started by grepping call_dissector_with_data, call_dissector_only and call_dissector and traced the handles passed into them to a find_dissector within the dissector. Then replaced find_dissector with find_dissector_add_dependency and added the protocol id from the dissector.
"data" dissector was not considered to be a dependency.
Change-Id: I15d0d77301306587ef8e7af5876e74231816890d
Reviewed-on: https://code.wireshark.org/review/14509
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Fixes a buffer overrun in dissct_rsl_ipaccess_msg when the tag is
exactly 0xff:
tag = tvb_get_guint8(tvb, offset);
tdef = &rsl_att_tlvdef.def[tag];
Bug: 11829
Change-Id: I25a3c6948242a52f59431ce84c108b2e52008930
Reviewed-on: https://code.wireshark.org/review/14011
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
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That removes most of the uses of the frame number field in the
frame_data structure.
Change-Id: Ie22e4533e87f8360d7c0a61ca6ffb796cc233f22
Reviewed-on: https://code.wireshark.org/review/13509
Reviewed-by: Guy Harris <guy@alum.mit.edu>
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Assign result of `register_dissector(..., func, proto)` to FOO_handle
and remove `FOO_handle = create_dissector_handle(func, proto)`.
Found by looking for files named packet-FOO.c having the above
create_dissector_handle pattern. Some files (with different dissect
routines for the two functions) remain unchanged.
Change-Id: Ifbed8202c6dbc63a1dae9acc03313980ffbbbb90
Reviewed-on: https://code.wireshark.org/review/13247
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Change-Id: I8512cfa1d424f82a873a0e0e1d22c7b075fdd7f3
Reviewed-on: https://code.wireshark.org/review/13069
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Bug: 11829
Change-Id: Id31ec9ee970c3a1e1fe64e3bf823f9ab78f7cd9e
Reviewed-on: https://code.wireshark.org/review/12558
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Change-Id: Ie39ef054a4a942687bd079f3a4d8c2cc55d5f22c
Reviewed-on: https://code.wireshark.org/review/12485
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Some of the ASN.1 dissectors still generate a new_create_dissector_handle from the tool itself, so leave those for now.
Change-Id: Ic6e5803b1444d7ac24070949f5fd557909a5641f
Reviewed-on: https://code.wireshark.org/review/12484
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Invalid character ')' in filter name 'gsm_abis_rsl.llsdu.sacch)'
**
ERROR:wireshark/epan/wmem/wmem_core.c:50:wmem_alloc: assertion failed: (allocator->in_scope)
Aborted
Change-Id: Ie22035cf9a9d1d29354a64cd5b085f1c2e18b1d3
Reviewed-on: https://code.wireshark.org/review/9017
Reviewed-by: Michal Labedzki <michal.labedzki@tieto.com>
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Change-Id: I979990e9385182870ce4809a7e6fa16e598cb2be
Reviewed-on: https://code.wireshark.org/review/9016
Reviewed-by: Michael Mann <mmann78@netscape.net>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Including:
tvb_length...() ==> tvb_reported_length...()
Remove some dead initializers;
Localize some variables;
Whitespace.
Change-Id: Ide9490f248d558bb7e3af96a1fc17d8f911de4ef
Reviewed-on: https://code.wireshark.org/review/6862
Reviewed-by: Bill Meier <wmeier@newsguy.com>
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Thou shalt call col_...() and/or a dissector under 'if(tree)'
Change-Id: Ibe62bc8229cb759d5f8b092aa7143d8e2f799037
Reviewed-on: https://code.wireshark.org/review/6781
Reviewed-by: Bill Meier <wmeier@newsguy.com>
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Change-Id: Ia2567695ffed30c990eda3740b08bfab101cea96
Reviewed-on: https://code.wireshark.org/review/2883
Reviewed-by: Michael Mann <mmann78@netscape.net>
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https://www.wireshark.org/lists/wireshark-dev/201406/msg00131.html
This reverts commit 246fe2ca4c67d8c98caa84e2f57694f6322e2f96.
Change-Id: Ib24bae0198c13a84bd7f731bf4af921212109a8f
Reviewed-on: https://code.wireshark.org/review/2430
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Change-Id: I9209c1271967405c34c1b6fa43e1726a4d3a5a3f
Reviewed-on: https://code.wireshark.org/review/2377
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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tvb_new_subset -> tvb_new_subset_remaining it appears that's what the intention is.
Change-Id: I2334bbf3f10475b3c22391392fc8b6864454de2d
Reviewed-on: https://code.wireshark.org/review/1999
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
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whitespace changes.
Change-Id: I6007c1b2098d06e4a892474dd07f06a7538f94ef
Reviewed-on: https://code.wireshark.org/review/1843
Reviewed-by: Bill Meier <wmeier@newsguy.com>
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(Using sed : sed -i '/^ \* \$Id\$/,+1 d')
Fix manually some typo (in export_object_dicom.c and crc16-plain.c)
Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8
Reviewed-on: https://code.wireshark.org/review/497
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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svn path=/trunk/; revision=54095
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svn path=/trunk/; revision=54025
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- Forward declaration of register functions.
svn path=/trunk/; revision=53958
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Also; fix a few "set but not used" warnings.
svn path=/trunk/; revision=52780
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svn path=/trunk/; revision=50640
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Issue reported by damker: http://www.wireshark.org/lists/wireshark-users/201301/msg00067.html
svn path=/trunk/; revision=47401
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svn path=/trunk/; revision=46630
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svn path=/trunk/; revision=45017
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Add new parameter 'data' to heur_dissector_t and new_dissector_t, for now it's always NULL
svn path=/trunk/; revision=44860
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svn path=/trunk/; revision=44639
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update filters and protocol names accordingly
svn path=/trunk/; revision=44172
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Tried to provide consistency with GSM dissector (protocol) names, even if the filenames now don't match the dissector name.
svn path=/trunk/; revision=44162
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svn path=/trunk/; revision=43907
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(COPYING will be updated in next commit)
svn path=/trunk/; revision=43536
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svn path=/trunk/; revision=42541
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- remove unneeded #includes;
- use val_to_str_const() as appropriate;
- reformat hf[] entries;
- reformat long lines;
- use #if 0/#endif to coment out code instead of /* ... */;
- remove boilerplate comments;
- whitespace & indentation
svn path=/trunk/; revision=42487
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svn path=/trunk/; revision=42461
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Search instead of Linear Search.
svn path=/trunk/; revision=42418
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svn path=/trunk/; revision=41470
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This is an enhancement for the existing A-bis RSL protocol dissector for GSM
networks (as specified in Technical Specification 12.21 of the 3GPP).
Basically,
this patch adds ip.access vendor-specific RSL extensions.
- Fixed the encoding argument to proto_add_item()
- Do not default to ip.accsess RSL.
- u_int8_t -> guint8
https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7549
svn path=/trunk/; revision=40850
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