Hello,
I'm having
difficulty with the trees. This is what I have so far: The items in bold is what
I can't get. Any help will be appreciated.
- Geotel Engineering
Document 125
- Base
Header
- Length
10
- Type:
SERVICE_CONTROL
- Header
// for SERVICE_CONTROL
ged125_item = proto_tree_add_item(tree,
proto_ged125, tvb, 0, -1, TRUE); //
displays the protocol name ("Geotel Engineering Document") on the tree
ged125_tree =
proto_item_add_subtree(ged125_item, ett_ged125); // doesn't display anything further, must set up something
ged125_sub_item = proto_tree_add_item(
ged125_tree, hf_ged125_header, tvb, offset, 8, TRUE ); //
makes the "base header" tree
ged125_header_tree =
proto_item_add_subtree(ged125_sub_item, ett_ged125);
length = tvb_get_ntohl(tvb, offset) +
EIGHT_BYTES; // first 4 bytes of
header gives entire ged125 packet size but it's always 8 bytes off so I add it
here
proto_tree_add_uint(ged125_header_tree,
hf_ged125_length, tvb, offset, 4, length);
offset+=4; //We increment the offset to get past the 4 bytes indicating
length
type = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint(ged125_header_tree,
hf_ged125_type, tvb, offset, 4, type); // add the
message "Type" to the
header tree
-Martin