Hi,
this morning I compared my code once again to the example-code from
http://www.wireshark.org/docs/wsdg_html_chunked/ChDissectAdd.html#ChDissectDetails
and it is exactly the same, except the ne protocol-name(which is correct
in my code here. the code pasted into the email had a small
renaming-error, I simply forgot to rename proto_slapml).
You say that the problem might come from the function
proto_tree_add_item because I did not pass a proto_register_field_array.
But according to the debugger, the program does not run up to this
point. I always stops at the first line in my
dissect_testdissect()-method, which is *col_set_str(pinfo->cinfo,
COL_PROTOCOL, "TestDissect");*. According to the debugger, this
assertion fails: *g_assert(cinfo->col_first[el] >= 0);*.
This tells me, that something in cinfo must have changed since the first
time the dissect_testdissect()-method was called(which functions
perfectly and the protocol-column is set to my custom protocol name
"TestDissect").
I will continue with the Developers Guide and look further into adding
the hf_array. But I would appreciate any thought on my problem since it
states cleary in the Developers Guide, that I should see a tree item in
the Details section with the code i already have(see text after Example
9.4 from my link above).
Regards,
Patrick
news.gmane.com schrieb:
"Patrick Nowak" <student.nowak@xxxxxxxxxx>
wrote in message news:4CECF80A.8040507@xxxxxxxxxx...
Hello,
I am fairly new to developing Dissectors for Wireshark. I started with
the small sample from the Wireshark Developers Guide and changed a few
things(Strings and Port).
My Plugin looks like this:
Your code does not compile.
1. proto_slapml is not defined. You pass the return value of
proto_register_protocol to this variable.
2. proto_testdissect is -1 and can cause this exception, when you pass this
to proto_tree_add_item.
3. The function proto_tree_add_item does not expect a return value from
proto_register_protocol but a hf index created by
proto_register_field_array.
see prototype:
proto_tree *proto_tree_add_item(proto_tree *tree, int hfindex, tvbuff_t
*tvb,
gint start, gint length, gboolean little_endian);
Andy
___________________________________________________________________________
Sent via: Wireshark-dev mailing list <wireshark-dev@xxxxxxxxxxxxx>
Archives: http://www.wireshark.org/lists/wireshark-dev
Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
mailto:wireshark-dev-request@xxxxxxxxxxxxx?subject=unsubscribe
