On Fri, Dec 02, 2011 at 04:21:15PM +0100, Yegor Yefremov wrote: > I'm writing a CANOpen dissector > (http://en.wikipedia.org/wiki/CANopen). The dissector itself is almost > ready. The main problem I have is, how do I hook this dissector on to > SocketCan one? CAN has no ports, so I can't decide on this basis. My > suggestion were to create a drop-down list in SocketCan dissector to > select high-level CAN protocol (like CANOpen, DeviceNet etc.). What do > you think about this?
Does the SocketCan protocol have any indication which protocol is next (CANOpen, DeviceNet, etc)? If so, you can use the call_dissector() to pass a tvbuff to the next dissector (from SocketCan to CANOpen for example). You would "break off" the rest of the packet that SocketCan is dissecting with something like tvb_new_subset() which creates a new tvbuff out of a backing tvbuff based on certain offset and length. ___________________________________________________________________________ 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-requ...@wireshark.org?subject=unsubscribe
