Folks,
I would like to use Wireshark to decode non-network data. To do this, I have
created a wireshark plugin. Here are some snippets of the plugin:
void proto_register_ldm(void)
{
module_t *module;
if (proto_ldm == -1)
{
proto_ldm = proto_register_protocol (
"Ldm Protocol", /* name */
"LDM", /* short name */
"ldm" /* abbrev */
);
...
}
void proto_reg_handoff_ldm(void)
{
...
ldm_handle = create_dissector_handle(dissect_ldm, proto_ldm);
dissector_add(wtap_encap, WTAP_ENCAP_USER0, ldm_handle);
..}
I have also created a pcap file for the sample data I want to decode in the
following manner:
od -tx1 -v ldmData.bin | text2pcap -l 147 - ldmData.pcap
i.e. I am using DLT USER0 (to match up with plugin).
Now when I try to configure DLT User 0 in wireshark
(Edit->Preferences->Protocols>DLT_USER->Edit Encapsulations Table
and adding an entry to decode DLT 147 using the "ldm" plugin)
I get the following error "No such proto:ldm". Now I do see that the ldm
dissector is successfully registered.
Any ideas on what is the issue here? Thanks,
--Mahesh
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