On Feb 15, 2014, at 10:17 PM, Dmitrij K <kdiman@xxxxxxx> wrote:
...
> Binary datas range from 0-*: <MISSING>
> ------- Here must be the 'Field magic3: 0x3' but it is not !!! --------
>> Dissector bug, protocol MYPROTO: proto.c:3566: failed assertion "DISSECTOR_ASSERT_NOT_REACHED"
OK, what you're doing wrong is doing
proto_tree_add_item(my_tree, hf_hdr_magic3, tvb, offset, -1, FALSE); offset += 1;
rather than
proto_tree_add_item(my_tree, hf_hdr_magic3, tvb, offset, 1, FALSE); offset += 1;
"magic3" is specified as a 1-byte field, so its length must be 1, not -1.