Wireshark-dev: Re: [Wireshark-dev] Attempting new dissectors using ASN and asn2wrs under MSVC 2

From: "Adrienne E. Siskind" <asiskind@xxxxxxxxx>
Date: Wed, 14 Apr 2010 09:35:56 -0400 (EDT)

Thanks, Anders.  Both suggestions helped.

Turns out that's not the only ASN construct in the SLE specs that asn2wrs doesn't like, so I'll be making a list of them as I progress.

------------------
[snip - using foo example from wiki]
> The resulting compile fails for the asn2wrs-generated packet-foo.c. > The compilation errors ostensibly occur in packet-per.h, and are of > the type I'd usually expect to see if there was a missing closing > brace somewhere above. I did change the inclusion of packet-per.h to > packet-ber.h to see what would happen, but this simply replaced one > set of compile errors with another.
>

Did you #include <epan/asn1.h>?

BTW - this did need to be added to the output of asn2wrs, which supposedly shouldn't be modified, and I'd have expected it to be in the generated file. Is it enough to mention that here, or should it be entered in bugzilla also?


[snip - CCSDS SLE Forward CLTU def]
> The spec is here (the asn definition is in Annex A at the end):
> http://public.ccsds.org/publications/archive/912x1b2c1.pdf
>
> The line in question reads:
>     IdentifierString ::= VisibleString (FROM (ALL EXCEPT " "))
>

I think asn2wrs may not handle that construct, to get it to compile try
to replace it with:

IdentifierString ::= VisibleString
(later it could be replaced by a list of all VisibleString
chars except " "

--
Adrienne