Wireshark · Wireshark-dev: Re: [Wireshark-dev] wireshark crashes after adding preference codeto my

["Yosi Saggi" <yosis@xxxxxxxxxxxxxxxxxxxxx>]

When I call the “mac-lte” dissector I get this message:

"Can't dissect LTE MAC frame because no per-frame info was attached!"

 

I don’t know what info do I need to add to the “pinfo” so it would work.

If you can help me in this point I will be very grateful.

 

I tried to send to the “mac-lte” dissector the buffer that contains only the MAC data (including the headers of course and all that comes with it (RLC, PDCP and finally IP data).

 

Any help will be great.

 

Yosi

 

From: wireshark-dev-bounces@xxxxxxxxxxxxx [mailto:wireshark-dev-bounces@xxxxxxxxxxxxx] On Behalf Of Martin Mathieson
Sent: Wednesday, January 26, 2011 12:44 PM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] wireshark crashes after adding preference codeto my

 

I can't see anything immediately wrong with this.  I assume your prefs variables (global_dan_lte_sdk_dissect_MAC and global_dan_lte_sdk_dissect_RLC) are gbooleans with file scope?

I'm wondering why the existing LTE MAC dissector isn't suitable, or can't be made to work with your frames?

Regards,
Martin

On Wed, Jan 26, 2011 at 10:07 AM, Yosi Saggi <yosis@xxxxxxxxxxxxxxxxxxxxx> wrote:

Hi

I wanted to add some options in the preference window for my dissector. This is the code I have added to the “proto_register” function:

 

module_t *dan_lte_sdk_module;

 

proto_dan_lte_sdk = proto_register_protocol ("DAN LTE SDK Protocol", "Dan LTE SDK", "dan_lte_sdk");

 

register_init_routine(dan_defragment_init);

 

proto_register_field_array (proto_dan_lte_sdk, hf, array_length (hf));

proto_register_subtree_array (ett, array_length (ett));

register_dissector("dan_lte_sdk", dissect_dan_lte_sdk, proto_dan_lte_sdk);

 

dan_lte_sdk_module = prefs_register_protocol(proto_dan_lte_sdk, NULL);

 

prefs_register_bool_preference(dan_lte_sdk_module, "Dissect_MAC_Payload",

                               "Dissect MAC Layer from Data Payload",

                               "In Uplink and Downlink data packets, dissect MAC heaser layer "

                               "Disabling MAC dissection will disable RLC dissection automaticly",

                               &global_dan_lte_sdk_dissect_MAC);

 

prefs_register_bool_preference(dan_lte_sdk_module, "Dissect_RLC_Payload",

                               "Dissect RLC Layer from Data Payload",

                               "In Uplink and Downlink data packets, dissect RLC heaser layer ",

                               &global_dan_lte_sdk_dissect_RLC);

 

It works fine until I add those two (even one of them)  "prefs_register_bool_preference" functions. What did I do wrong?

I get a "Runtime Error!" for wireshark.exe Removing those function fixes  it back.

 

Thanks

      Yosi

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