Wireshark-dev: Re: [Wireshark-dev] (no subject)
From: ankit <[email protected]>
Date: Thu, 22 Mar 2012 13:26:20 +0530
Hi
 Thank you fro your suggestion. I have solved the problem. The problem
was in the FIELDDISPLAY part of the definition of &hf_event_link_detect.
It is defined as 1 but is to be put as 32 ie the size of &hf_event_list.

Thanks & Regards
Ankith

On Wed, 2012-03-21 at 19:29 +0100, Alexis La Goutte wrote:
> Hi Ankitha,
> 
> What the value of event_fields ?
> Do you have look other dissector use proto_tree_add_bitmask ?
> (packet-gsm_sim.c or packet-ieee80211.c )
> 
> Regards,
> 
> On Wed, Mar 21, 2012 at 4:50 PM, <[email protected]> wrote:
>         Hi
>          I am currently working on developing of MIH protocol plugin.
>         I am
>         using proto_tree_add_bitmask and getting the error in the
>         packets as -
>         17:55:33          Warn Dissector bug, protocol MIH, in packet
>         8:
>         proto.c:7166: failed assertion "len * 8 == hf->display"
>         
>         What may be the error?
>         The following is the definition of the datatype where the
>         error occurs-
>         
>         {
>                &hf_event_link_detect,
>                {
>                        "MIH LINK Detected",
>                        "mih.event_list.link_detect",
>                        FT_BOOLEAN,
>                        1,
>                        NULL,
>                        LINK_DETECT_MASK,
>                        NULL, HFILL
>                                }
>         }
>         
>         and the call to the function is like this-
>         
>         evt_list_tree = proto_item_add_subtree(tlv_tree,
>         ett_event_bitmap);
>         proto_tree_add_bitmask(evt_list_tree, tvb, offset,
>         hf_event_list,
>         ett_event_bitmap, event_fields, ENC_BIG_ENDIAN);
>         
>         -->hf_event_list is defined this way-
>         {
>                &hf_event_list,
>                {
>                        "List of Events",
>                        "mih.event_list",
>                        FT_UINT32,
>                        BASE_HEX,
>                        NULL,
>                        0x0,
>                        NULL, HFILL
>                }
>         },
>         
>         Let me know if any extra info is required.
>         
>         NB:I am sorry for duplicating the mail, but the problem is a
>         little
>         urgent.
>         
>         Regards
>         Ankith
>         
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