Wireshark · Ethereal-dev: [Ethereal-dev] Re: Asn2eth: issue when trying with Camel/UMTS ASN1 description

[ronnie sahlberg <ronniesahlberg@xxxxxxxxx>]

As Anders pointed out,
ASN2ETH can not handle parameters so you have to change the ASN1 file
to get rid of all  .&  things  as Anders suggested.

Camel sounds like an exciting protocol,
when you get it to work, can you add a protocol description and maybe
a sample capture to the Wiki ?



On Fri, 18 Mar 2005 15:02:48 +0100, Anders Broman <a.broman@xxxxxxxxx> wrote:
> Hi,
> Tomas Kukosa or Ronnie Sahlberg can probably answer this better but I think
> you'll have to replace all
> The bound.&minAChBillingChargingLength type statements by the real values
> like
> MINIMUM-FOR-ACH-BILLING-CHARGING
> &minAChBillingChargingLength
> MINIMUM-FOR-ACH-BILLING-CHARGING
> 
> APSpecificBoundSet PARAMETERS-BOUND ::= {
>  MINIMUM-FOR-ACCESS-POINT-NAME    1
>  MAXIMUM-FOR-ACCESS-POINT-NAME    100
>  MINIMUM-FOR-ACH-BILLING-CHARGING   5
> e.g "5"
> Actually
> AChBillingChargingCharacteristics {PARAMETERS-BOUND : bound} ::= OCTET
> STRING (SIZE
>  (bound.&minAChBillingChargingLength ..
> bound.&maxAChBillingChargingLength))
>  (CONSTRAINED BY {-- shall be the result of the BER-encoded value of
> the type --
>  CAMEL-AChBillingChargingCharacteristics {bound}})
> Would probably have to be changed to:
> AChBillingChargingCharacteristics {PARAMETERS-BOUND : bound} ::= OCTET
> STRING (SIZE
>  (5 .. 177))
> -- (CONSTRAINED BY {-- shall be the result of the BER-encoded value of
> the type --
> -- CAMEL-AChBillingChargingCharacteristics {bound}})
> e.g CONSTRAINED BY will probably not work either, you'd also have to take
> care of the imported types.
> Either by including the definitions in this asn1 file or if they are
> included in existing dissectors
> Import them from those.
> 
> Hope this helps.
> Best regards
> Anders
> 
> Hello,
>  
> I'm trying to create a Camel/UMTS dissector with asn2eth tool.
> The ASN1 file is coming from this specification (29078-630 modules.txt
> file): http://www.3gpp.org/ftp/Specs/Archive/29_series/29.078/29078-630.zip
> I'm starting, based on Tim's Camel alpha dissector
> (http://www.ethereal.com/lists/ethereal-dev/200502/msg00330.html), the only
> thing is that this one will be more complete.
>  
> But when launching asn2eth script, I have an error message
> "__main__.ParseError: LexToken(DOT,'.',71)":
>  
> C:\transfer\ethereal\winbuild\ethereal\asn1\camel.oja>nmake
>  
> Microsoft (R) Program Maintenance Utility   Version 6.00.8168.0
> Copyright (C) Microsoft Corp 1988-1998. All rights reserved.
>  
>         python ../../tools/asn2eth.py -X -b -e -p camel -c camel.cnf -s
> packet-camel-template camel.asn
> ASN.1 to Ethereal dissector compiler
> Traceback (most recent call last):
>   File "../../tools/asn2eth.py", line 4485, in ?
>     eth_main()
>   File "../../tools/asn2eth.py", line 4456, in eth_main
>     ast = yacc.parse(s, lexer=lexer, debug=pd)
>   File "C:\transfer\ethereal\winbuild\ethereal\tools\yacc.py", line 311, in
> parse
>     tok = self.errorfunc(errtoken)
>   File "../../tools/asn2eth.py", line 4258, in p_error
>     raise ParseError(str(t))
> __main__.ParseError: LexToken(DOT,'.',71)
> NMAKE : fatal error U1077: 'python' : return code '0x1'
> Stop.
>  
> Could it be because of "ANY and parameterized types" as described in the
> wiki: http://wiki.ethereal.com/Asn2eth_20Handmassaging_20the_20ASN_20file ?
> I just don't understand the error message I guess :)
>  
> Thanks,
> Olivier.
> 
> 
> 
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