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Wireshark-bugs: [Wireshark-bugs] [Bug 7648] enhanced GSM MAP checkIMEI new tags

Date: Mon, 20 Aug 2012 03:26:23 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7648

--- Comment #9 from Anders Broman <anders.broman@xxxxxxxxxxxx> 2012-08-20 03:26:22 PDT ---
(In reply to comment #5)
> Created attachment 8973 [details]
> Add preference to select Ericsson proproietary enhanced checkIMEI
> 
> Here is a patch adding a preference allowing the user to choose between the
> 3GPP or Ericsson proprietary checkIMEI (set by default to 3GPP standard
> checkIMEI).
> 
> Before committing it, I would like to wait a few days to get comments from
> other people (Anders?).
> 
> It would be good also if you could confirm that this specific ASN.1 structure
> you sent is matching Ericsson implementation (as it seems you went through a
> lot of attempts before getting something that works for you):
> EnhancedCheckIMEI-Arg ::= SEQUENCE {
>     imei            IMEI,
>     requestedEquipmentInfo    RequestedEquipmentInfo OPTIONAL,
>     imsi                    [PRIVATE 1] IMSI OPTIONAL,
>     locationInformat        [PRIVATE 3] OCTET STRING (SIZE (1..7)) OPTIONAL,
>     extensionContainer    ExtensionContainer    OPTIONAL,
>     ...}
> Does anyone from Ericsson can confirm it?

Hi,
I can't realy comment on any Ericsson proprietary extensions as I don't know if
they are/should be publicly available or not.

The principle on how to add proprietarry extensions are interesting. In order
to make it easier and less error prone to update the ASN1 files from the
standard it would be better if they could be keept in a separate ASN1 file or
surronded by
-- WS modification
-- End WS modification
a third option could be to put it in the GSMMAP.asn file which if memory serves
is a "backwards compabillity" file whith michelanious stuff.

The preference should probably be "Dissect Ericsson proprietarry extensions" to
make it more generic and any other manufacturer could be added.

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