Wireshark-dev: Re: [Wireshark-dev] asn2wrs conformance TYPE_ATTR problem
From: Risto Paasila <[email protected]>
Date: Thu, 5 May 2011 13:14:00 +1000
On 5 May 2011 12:59, Risto Paasila <[email protected]> wrote:
>> Subject: Re: [Wireshark-dev] asn2wrs conformance TYPE_ATTR problem
>>
>>>> Did I miss something? a arbitrary long field of binary data can not be FT_STRING.
>>>> /Anders
>>>
>>>The field that I initially had in question was:
>>>
>>>  correlationID [0] IMPLICIT OCTET STRING (SIZE(14))
>>>
>>>So it should be maximum 14 octets. Is that still arbitrary?
>> No, as the octet string has size constraints but still the hf field constructed for an OCTET STRING
>> Should be FT_BYTES as its Binary data, if a implementation chooses to put a string in that field you
>> Can override that by defining a .#ATTRIB (I think) but be aware that some other manufacturer/protocol implementer my put binary data in there and then the dissection would be wrong. Unless it's specified that even though the
>> Asn1 spec is OCTET STRING a utf8 string should be put in that field.
>> Regards
>> Anders
>
> You have given hope :-)
> This is from my conformance file, but as I originally said, those are
> taken and displayed in the debug output,
> so I am wondering why it doesn't put them into the generated HF code:
>
> #.TYPE_ATTR
> operationCode TYPE = FT_INT32 DISPLAY = BASE_DEC STRINGS =
> VALS(myOperationNames)
> errorCode TYPE = FT_INT32 DISPLAY = BASE_DEC STRINGS = VALS(errorCodeNames)
> correlationID TYPE = FT_STRING DISPLAY = BASE_NONE
> uIScriptSpecificInformation TYPE = FT_STRING DISPLAY = BASE_NONE
> uIScriptResult TYPE = FT_STRING DISPLAY = BASE_NONE
> OCTET_STRING_SIZE_14 TYPE = FT_STRING DISPLAY = BASE_NONE
> #.END
>
>
> Regards
> Risto
>

YES! found it, I needed the #.FIELD_ATTR instead, so now I have

#.TYPE_ATTR
operationCode TYPE = FT_INT32 DISPLAY = BASE_DEC STRINGS =
VALS(myOperationNames)
errorCode TYPE = FT_INT32 DISPLAY = BASE_DEC STRINGS = VALS(errorCodeNames)
#.END

#.FIELD_ATTR
AssistRequestInstructionsArg/correlationID TYPE = FT_STRING DISPLAY = BASE_NONE
ScriptRunArg/uIScriptSpecificInformation TYPE = FT_STRING DISPLAY = BASE_NONE
ScriptEventArg/uIScriptResult TYPE = FT_STRING DISPLAY = BASE_NONE
#.END


Many thanks for you help.
Risto