Wireshark · Wireshark-dev: Re: [Wireshark-dev] Including ASN.1 format coding in a C dissector

["Anders Broman \(AL/EAB\)" <anders.broman@xxxxxxxxxxxx>]

Hi,
You could export the relevant ASN1 sequence by adding somethig like this from
GSM_MAP in the gsm_map.cnf file
 
#.EXPORTS
AddressString
 
Add packet-ranap.h to the includes in your file and then use the exported funktion
offset = dissect_gsm_map_AddressString();
in your dissector. Is this something you plan to offer for inclusion in Wireshark?
Best regards
Anders

________________________________

From: wireshark-dev-bounces@xxxxxxxxxxxxx on behalf of taraniteja.vishwanatha@xxxxxxxxx
Sent: Wed 4/11/2007 2:10 PM
To: wireshark-dev@xxxxxxxxxxxxx
Subject: [Wireshark-dev] Including ASN.1 format coding in a C dissector



Hi ,

 

I have written  a dissector for a protocol which has a coding standard of Tag-Length-Value. Now in this dissector , I have to add some messages of RANAP protocol which has a coding standard in ASN.1 format.Already the dissector for RANAP is available in the wireshark. Now:

 

1.Can I call the existing dissector for those particular messages??? If so how do I do that??

2. If I want to include it normally in my dissector, how can I convert the ASN.1 format to obtain the tag and lengths of  individual parameters??

 

Can anybody please help??

 

//Tarani 


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