Re: Attempting new dissectors using ASN and asn2wrs under MSVC 2008E

[Anders Broman <a.broman () telia com>]

Adrienne E. Siskind skrev 2010-04-14 15:35:
> 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.
>    
If you intend to commit this to wireshark when you are finished we could 
add the files under
/asn1/xxx
while the work progresses in that way it may be easier to comment/help 
on any problems.
> ------------------
> [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?
>
>    
You need to add it in the xx-template.c so more of a thing for the wiki?
> [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
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