Hello,
I'm writing a dissector for a complex binary protocol that uses a lot
of nested structures, that are serialized on the wire.
All complex types are built on top of some basic simple types.
I'm generating the complex type parsers with a self written code
generator
and only write the parsers for the simple types by hand.
E.g. the Boolean DataType is used in many complex types.
static hf_register_info hf[] =
{
{ &hf_opcua_boolean,
{ "Boolean", "", FT_BOOLEAN,
BASE_DEC, NULL, 0x0, "", HFILL }
},
...
}
/* Simple Type Boolean */
void parseBoolean(proto_tree *tree, tvbuff_t *tvb, gint *pOffset, char
*szFieldName)
{
proto_tree_add_item(tree, hf_opcua_boolean, tvb, *pOffset, 1,
TRUE); *pOffset+=1;
}
/* Complex Type Reference Description */
void parseReferenceDescription(proto_tree *tree, tvbuff_t *tvb, gint
*pOffset, char *szFieldName)
{
proto_item *ti = proto_tree_add_text(tree, tvb, 0, -1, szFieldName);
proto_tree *subtree = proto_item_add_subtree(ti,
ett_opcua_ReferenceDescription);
parseNodeId(subtree, tvb, pOffset, "ReferenceTypeId");
parseBoolean(subtree, tvb, pOffset, "IsForward");
parseUInt32(subtree, tvb, pOffset, "ServerIndex");
parseExpandedNodeId(subtree, tvb, pOffset, "NodeId");
parseQualifiedName(subtree, tvb, pOffset, "BrowseName");
parseLocalizedText(subtree, tvb, pOffset, "DisplayName");
parseInt32(subtree, tvb, pOffset, "NodeClass");
parseExpandedNodeId(subtree, tvb, pOffset, "TypeDefinition");
}
The problem is, that I want to output the field name, and not the type
of a field.
Is there a way to do that with hf_register_info?
The only solution I see is to use proto_tree_add_text instead
and don't use hf_register_info
and format the data myself.
But than there is no relation between the protocol tree and the raw
data window anymore.
Any ideas?
regards,
Gerhard.
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