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Ethereal-dev: Re: [Ethereal-dev] ISUP patch

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From: Michael Tuexen <Michael.Tuexen@xxxxxxxxxxxxxxxxx>
Date: Tue, 19 Aug 2003 22:40:57 +0200
Hi Anders,
can you send a a (small) sample trace file to

tuexen@xxxxxxxxxxxxxx

showing the problem?

The parameter tag 14 is not a valid M2UA parameter tag.

Best regards
Michael

On Monday, Aug 18, 2003, at 23:06 Europe/Berlin, Anders Broman wrote:

Hi,
I took a look at this as I was intersted to see if there was bug in the ISUP
dissector, but it
turns out that it's the M2UA dissector that trows the message out as it
'can't' understand
parameter tag 14 ( 0xoe ).
Faulty application or ....


Best regards
Anders Broman
On Fri, Aug 15, 2003 at 11:31:37AM -0700, Michael Lum wrote:
I believe the ISUP dissector has a bug when decoding the
optional parameter pointer.

Please see the attached isup.snoop.  Packet 5 contains an RLC in
which the last octet (optional parameter pointer) is not handled
correctly.

A patch is attached.

I applied it; now it's dissecting it as "Unknown parameter with tag 14
and 11 bytes value" rather than "Parameter with tag 14 and 11 bytes
value", and that's the only difference - is that what's intended?


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