[Tapas Chatterjee <tapas.chatterjee@xxxxxxxxxxx>]

Hi,
If encoding is wrong then our internal tool can't decodes it properly also you have decoded the same message in some way which is also similar with our decoding. So I think there is no problem in encoding procedure.
Also when I have tried to move one byte offset by forcefully before start decoding "neighbouring-FDD-CellInfo" its doing fine but in the case of array of extension field it gives some wrong result I know it is not feasible way may be here need some modification in packet-per.c file and asn2wrs.py files. I have also tried the SVN 27853 correction patch but it is not working
Gives some error like "UNKNOWN PER: 10.9.3.8.1"
Another one you have mentioned
c-ID: 331
00f0   01 4b
But I haven't got that point where you are getting such value in the capture?
Are you assuming this value according to the IEs definition?
Please help to resolve this issue.
With regards,
Tapas

-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Anders Broman
Sent: Thursday, April 02, 2009 8:52 PM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] [Bug 3360] Wireshark givesdecodingerrorduring rnsap messagedissection

Hi,
I think your encoding may be wrong:

normally (INTEGER) = 9812  //raj 38

>From 3GPP TS 25.423: RNSAP shall use the ASN.1 Basic Packed Encoding
Rules (BASIC-PER) Aligned Variant
:
c-ID: 331
00f0   01 4b
Next bit is the extension bit ( bit 8 of 00f2)
0... .... Extension Present Bit: False
Next "uARFCNforNu: 9812(actually 38)" should be encoded and I think that
should be placed byte aligned 16bits(/* 10.5.7.3 */ )
Not 8.

Regards
Anders

-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Anders
Broman
Sent: den 26 mars 2009 10:07
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] [Bug 3360] Wireshark gives
decodingerrorduring rnsap messagedissection

Hi,
Does this decoding look right to you?
Fore some reeason dissecting the actual trace with my fix does not
work(reassembly???) but I extracted the rnsap data And used text2pcap to
crate a new packet. (
Edit->preferenses_>protocols->DLT_USER 150 -> rnsap).
Regards
Anders


-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Tapas
Chatterjee
Sent: den 26 mars 2009 05:41
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] [Bug 3360] Wireshark gives decoding
errorduring rnsap messagedissection

Hi,
I am decoding the message some of our internal tools (based on ASN)
which gives the correct decoding result. So I think there is no error in
the message.
Regards
Tapas
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Anders
Broman
Sent: Wednesday, March 25, 2009 10:38 PM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] [Bug 3360] Wireshark gives decoding
errorduring rnsap messagedissection

Hi,
Do you have a "Correct" decoding by some other tool?
I think the problem may be due to:
Neighbouring-FDD-CellInformation ::= SEQUENCE ( SIZE
(1..maxNrOfFDDNeighboursPerRNC,...)) OF
Neighbouring-FDD-CellInformationItem
E.g the SEQUENCE OF constraint has extension which is not catered for in
Wireshark but when I try to fix it I get strange results :-( Regards
Anders

-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Tapas
Chatterjee
Sent: den 25 mars 2009 13:11
To: wireshark-users@xxxxxxxxxxxxx
Subject: [Wireshark-users] [Bug 3360] Wireshark gives decoding error
during rnsap messagedissection



Hi,
It is going right up to rNC ID: 109 after its start dissection
"neighbouring-FDD-CellInformation"
Where C-ID the value decode now "8448" Hex "20 01" instead "331" Hex "01
4b"
So offset movement start's going wrong here.
Hope this info may help you.
Any clarity further let me know.

With regards
Tapas

-----Original Message-----
From: bugzilla-daemon@xxxxxxxxxxxxx
[mailto:bugzilla-daemon@xxxxxxxxxxxxx]
Sent: Wednesday, March 25, 2009 5:13 PM
To: Tapas Chatterjee
Subject: [Bug 3360] Wireshark gives decoding error during rnsap
messagedissection

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3360


Anders Broman <anders.broman@xxxxxxxxxxxx> changed:

           What    |Removed                     |Added
------------------------------------------------------------------------
----
                 CC|
|anders.broman@xxxxxxxxxxxx




--- Comment #1 from Anders Broman <anders.broman@xxxxxxxxxxxx>
2009-03-25 04:43:07 PDT --- Hi, Looking at packet 9

txDiversityIndicator: true (0)
0e0  2a 0a 00
           --
The next is the
iE-Extensions ProtocolExtensionContainer { {
Neighbouring-FDD-CellInformationItem-ExtIEs} } OPTIONAL,
                              .Sequence-Of Length: 46338 00e0  2a 0a 00
b5 01
               -----
So here's where it start's to go wrong is the decoding up to here
looking ok? or is WS missing some mandatorry element?
Should it have been on octet further eg '01' insted can you pinpoint
more exactly waht's wrong up to here?
Regards
Anders


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