Ethereal-dev: RE: [Ethereal-dev] Re: DNP3 Dissector Additions
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From: "Mike Cornelius" <mikec@xxxxxxxxxxxxxxxxxx>
Date: Tue, 21 Jun 2005 19:35:55 +1000
Hi Chris, Thank you VERY much for your patch, I had been considering doing the same thing when I got some time to do so (which realisticly means never :) ). Your work is greatly appreciated. Mike Cornelius Call Direct Cellular Solutions -----Original Message----- From: ethereal-dev-bounces@xxxxxxxxxxxx [mailto:ethereal-dev-bounces@xxxxxxxxxxxx] On Behalf Of Chris Bontje Sent: Tuesday, 21 June 2005 2:56 PM To: ethereal-dev@xxxxxxxxxxxx Subject: [Ethereal-dev] Re: DNP3 Dissector Additions All, Here are the additions to the DNP3 dissector as promised. I would like to submit this patch for the next version of Ethereal. These modifications should be considered preliminary, here is a brief summary of what was added: - Added Application Layer Object Decoding. Supports IIN bits and most of the common objects & variations (Binary Inputs, Binary Outputs, Control Relay O/P Block, Binary Counters, Analog Inputs, Class Data, Time Formats). Support will be added for other objects/vars as captures with examples of them can be provided. - Added support for more Application Layer function codes. Support for remaining codes will be added in as captures can be provided. - Added UDP/IP port 20000 as a default DNP3 port (in addition to TCP/IP port 20000), as registered with regulatory bodies. - Started re-write to support fragments with multiple DNP3-frames and frames seperated between multiple fragments (both UDP & TCP). This dissector has been tested w/ a wide varity of DNP3 SCADA captures, if there is a capture that generates errors or invalid output, please provide it so appropriate fixes can be made! :) The same goes for any suggestions or comments regarding the output formatting - just because I like this output doesn't mean someone else is expected to! This diff file was created using the 'diff' util with the -u command-line switch, let me know if it is not acceptable for submission. The testing has primarily been done on the VC6 platform, please let me know if issues are encountered w/ any *nix builds. Thanks goes out to Graham Bloice for his invaluable assistance w/ the whole process of adding this support. Regards, Chris Bontje Calgary, Alberta, Canada ----- Original Message ----- From: Chris Bontje <chrisbontje@xxxxxxx> Date: Saturday, June 4, 2005 8:01 pm Subject: DNP3 Dissector Additions > All, > > I have recently been tinkering w/ the DNP3 dissector included in the > latest public source release of Ethereal. > > I've successfully added in Application Layer Decoding support for > several objects and am planning on adding a mostly complete library. > So far I have added in some of the most common object variations for > Binary Inputs, Outputs, Analog Inputs (16-bit & 32- > bit) and Binary Counters. > > I have several Ethereal captures from various SCADA networks w/ > DNP3 traffic and have been punishment-testing my work to the best of > my abilities... so far so good! > > When I'm satisified w/ my code, I'll be certain to post my changes to > the source tree so that they can (hopefully) be included in the > official release. > > Here's hoping my intermediate-level coding is clean enough to make it > into an excellent project like Ethereal! > > Regards, > > Chris Bontje > Calgary, Alberta, Canada >
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