Wireshark mailing list archives
Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector
From: <HPfrommer () hilscher com>
Date: Tue, 27 Sep 2011 13:47:36 +0200
Seems to work perfect now! -----Ursprüngliche Nachricht----- Von: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] Im Auftrag von Guy Harris Gesendet: Montag, 26. September 2011 22:56 An: Developer support list for Wireshark Betreff: Re: [Wireshark-dev] How to handle Ethernet frames with FCS,malformed packet in PN dissector On Sep 26, 2011, at 12:34 PM, Guy Harris wrote:
Yes - it's assuming that it's being handed a tvbuff containing the FCS, *even if the dissector for the link layer knows that there's an FCS*. That's not what link-layer dissectors should be doing; there was a bug, introduced a while ago, where the Ethernet dissector wasn't removing the FCS if it knew it was there, so perhaps that code was written during the period where that bug was present. I will remove that code from the PN dissector and leave behind a comment explaining why there is no FCS handling code there.
OK, done. Try it with the current SVN version of Wireshark. BTW, is there a spec available for PROFINET Real-Time packets, for non-PROFINET members, either for free or for a not-too-high fee? ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe Hilscher Gesellschaft für Systemautomation mbH Rheinstr. 15, 65795 Hattersheim Sitz der Gesellschaft: Hattersheim Geschäftsführer: Hans-Jürgen Hilscher Registergericht: Amtsgericht Frankfurt/Main Handelsregister: Frankfurt B 26873 www.hilscher.com ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- How to handle Ethernet frames with FCS, malformed packet in PN dissector HPfrommer (Sep 26)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector Guy Harris (Sep 26)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector Guy Harris (Sep 26)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector Stephen Fisher (Sep 26)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector Guy Harris (Sep 26)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector HPfrommer (Sep 27)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector Guy Harris (Sep 26)
- Re: How to handle Ethernet frames with FCS, malformed packet in PN dissector Guy Harris (Sep 26)