Wireshark-dev: Re: [Wireshark-dev] gsmmap asn1 directory
From: "Anders Broman" <[email protected]>
Date: Mon, 18 Jun 2007 22:56:32 +0200
Hi,
I Believe I fixed all exept:
>- and one with a Facility with Forward CUG info. For this problem, this 
>is only a display problem, as the information is correctly decoded, but 
>a Warning is displayed at the end of the decoding.  
I see no warning :(

Regards
Anders

-----Ursprungligt meddelande-----
Från: [email protected]
[mailto:[email protected]] För Florent Drouin
Skickat: den 18 juni 2007 15:32
Till: Developer support list for Wireshark
Ämne: Re: [Wireshark-dev] gsmmap asn1 directory

    Hi Anders,

Thank you for your correction. It is working now with the new syntax.
I did launch some tests, and found  new problems.

For the Cancel Location message, you can replace the 
old_CancelLocationArgV2 by the Identity message.
So the old syntax for Cancel Location is not used anymore.
<<
static int dissect_invokeData(proto_tree *tree, tvbuff_t *tvb, int 
offset, asn1_ctx_t *actx) {
../..
  case  2: /*updateLocation*/   
    offset=dissect_gsm_map_ms_UpdateLocationArg(FALSE, tvb, offset, 
actx, tree, -1);
    break;
  case  3: /*cancelLocation*/
    offset=dissect_mc_message(tvb, offset, actx, tree,   
                  FALSE, dissect_gsm_map_Identity, hf_gsm_map_ms_identity,
                  FALSE, dissect_gsm_map_Identity, hf_gsm_map_ms_identity,
                  //FALSE, dissect_gsm_old_CancelLocationArgV2, 
-1,/*undefined*/
                  TRUE , dissect_gsm_map_ms_CancelLocationArg_U, -1);
    break;
 >>

For the message Send Authentication Info Res, there is a typo error. The 
"item" should not be used.
<<
static int dissect_returnResultData(proto_tree *tree, tvbuff_t *tvb, int 
offset, asn1_ctx_t *actx) {

  case 56: /*sendAuthenticationInfo*/
    offset=dissect_mc_message(tvb, offset, actx, tree,   
                  FALSE, NULL, -1,
                  //FALSE, 
dissect_gsm_old_SendAuthenticationInfoResOld_item, -1,
                  FALSE, dissect_gsm_old_SendAuthenticationInfoResOld, -1,
                  TRUE , dissect_gsm_map_ms_SendAuthenticationInfoRes, -1);
    break;
 >>


I have two other problems,
- one with the decoding of "processUnstructuredSS-Data", the IA5 string 
is not decoded/displayed.
- and one with a Facility with Forward CUG info. For this problem, this 
is only a display problem, as the information is correctly decoded, but 
a Warning is displayed at the end of the decoding.

I will continue to analyze MAP traces, and if I found the corrections 
for the 2 last problems, I'll send it to you.

Best regards
Florent


Anders Broman wrote:
> Hi,
> I changed the asn1 def of the PLMN container and it looks
> Ok to me now.
>
> Regards
> Anders
>
> -----Ursprungligt meddelande-----
> Från: [email protected]
> [mailto:[email protected]] För Anders Broman
> Skickat: den 15 juni 2007 19:41
> Till: 'Developer support list for Wireshark'
> Ämne: Re: [Wireshark-dev] gsmmap asn1 directory
>
> Hi,
> Did dissection of the PLMN container work previously?
> Regards
> Anders
>
> -----Ursprungligt meddelande-----
> Från: [email protected]
> [mailto:[email protected]] För Florent Drouin
> Skickat: den 15 juni 2007 18:50
> Till: Developer support list for Wireshark
> Ämne: Re: [Wireshark-dev] gsmmap asn1 directory
>
> It's OK for the AuthenticationInfo.
> I will try to launch an "campaign" to detect other decoding problems, 
> but only once the gsmmap.cnf file will be updated.
> Because, at the present time, I have to many errors with messages 
> containing the private plmn container.
> Thank's for your correction.
>
> Regards
> Florent
>
> Anders Broman wrote:
>   
>> Hi,
>> Can you try now?
>> Regards
>> Anders
>>
>> -----Ursprungligt meddelande-----
>> Från: [email protected]
>> [mailto:[email protected]] För Anders Broman (AL/EAB)
>> Skickat: den 15 juni 2007 10:53
>> Till: Developer support list for Wireshark
>> Ämne: Re: [Wireshark-dev] gsmmap asn1 directory
>>
>> Hi,
>> Will try to fix it this evening.
>> Regards
>> Anders 
>>
>> -----Original Message-----
>> From: [email protected]
>> [mailto:[email protected]] On Behalf Of Florent Drouin
>> Sent: den 15 juni 2007 10:34
>> To: Developer support list for Wireshark
>> Subject: [Wireshark-dev] gsmmap asn1 directory
>>
>>     Hello,
>>
>> I wanted to make a change in the gsmmap template files, for the
>> SendAuthentication InfoArgOld.
>> But I can not generate the files again from the ASN1 directory.
>> I did update the Unix Makefile to have the same inputs as the windows
>> one, but it doesn't work.
>> I think the gsmmap.cnf is not up to date, and it seems not to be used by
>> the Makefile.
>>
>> Could you check if the MAP asn1 directory is up to date ?
>>
>> Thanks in advance
>> Regards
>> Florent
>>
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>
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