Hi together,
I tried to use the Expert Info feature to get a fast "statistic" about
checksum errors in my protocol. So, when a message has a wrong CRC, I
rise a Expert warn. It shows nicely in the message list (as a yellow
marking), but it doesn't show up in the Expert Info Analyse Window.
Here my code snipplet:
if (tree) { // we are being asked for details -------------------------------------------
guint32 offset = 0;
guint32 length = 0;
// add subtree for MPIC com7 protocol
mpic_com7_item = proto_tree_add_protocol_format(tree, proto_mpic_com7, tvb, 0, -1,
"MPIC COM7 frame (raw bytes: %3d, decrypted bytes: %3d, framestatus: %s)",
datalen, j, match_strval(framestatus,framestatusnames));
mpic_com7_tree = proto_item_add_subtree(mpic_com7_item, ett_mpic_com7_length);
// Add subitems
proto_tree_add_uint(mpic_com7_tree, hf_mpic_com7_length, tvb, 0, i, datalen);
proto_tree_add_uint(mpic_com7_tree, hf_mpic_com7_checksum, tvb, 0, 0, inbyte);
if (framecheck != 0)
{
pi = proto_tree_add_text(mpic_com7_tree, tvb, 0, 0, "Calculated CRC: 0x%02x -> CRC ERROR !", framecheck);
expert_add_info_format(pinfo, pi, PI_CHECKSUM, PI_WARN, "CRC8 ERROR");
}
proto_tree_add_uint(mpic_com7_tree, hf_mpic_com7_framestatus, tvb, 0, 0, framestatus);
}
Did I something wrong? As I said, it works nicely for the message list,
but not for the Expert Info Analysis. Attached a screenshot, you can see
my "warn" Info and the following "error" warning looking quite the same.
I know, that the error might mask out my warning, if they're in the
same message, but I also have messages only with a warning, the problem
is the same...
Could anyone help me?
Thanks
Christian
--
Christian Gurk
Electronics Working Group / Research & Development
Max-Planck-Insitute for Chemistry, Mainz, Germany
+49-6131-305387 / christian.gurk@xxxxxxx
