diff options
Diffstat (limited to 'doc/proto_tree')
| -rw-r--r-- | doc/proto_tree | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/proto_tree b/doc/proto_tree index 4f20865272..550c1a47b2 100644 --- a/doc/proto_tree +++ b/doc/proto_tree @@ -101,6 +101,24 @@ during registration. /* parent */ proto_frame, /* vals[] */ NULL ); +Groups of header fields can be registered with one call to +proto_register_field_array(). An const array of hf_register_info +structs is declared, then passed to proto_register_field_array, along +with a count of the number of records. You can use the handy +array_length() macro found in packet.h to have the compiler compute +the array length for you at compile time: + + int hf_field_a = -1; + int hf_field_b = -1; + + const hf_register_info hf[] = { + { "Field A", "proto.field_a", &hf_field_a, FT_UINT8, NULL }, + { "Field B", "proto.field_a", &hf_field_a, FT_VALS_UINT16, VALS(vs) }, + }; + + proto_tr = proto_register_protocol("Token-Ring", "tr"); + proto_register_field_array(proto_tr, hf, array_length(hf)); + The name can be used in any type of display, either in the GUI tree, or in a display filter UI. The abbreviation is used when representing a display filter as a string. For example, the following strings could be a @@ -131,6 +149,7 @@ enum ftenum { FT_VALS_UINT16, FT_VALS_UINT24, FT_VALS_UINT32, + FT_TEXT_ONLY, /* used internally, but should be used by dissectors */ NUM_FIELD_TYPES /* last item number plus one */ }; |