Hi Pascal,
Thanks for your quick reply.
> Do you have an example where the heuristics fail? [...] Or maybe you have a use case I did not think about that really requires it.
No, I do not have any example, but I have a use case. I would like to get the direction of the packet by reading the exported_pdu header from the pcapng file without having to dissect the packet.
I see that 3GPP decoders use the link_dir field, instead of p2p_dir. If there was already a tag for the link_dir field, I would not have asked, but it seems there is only a tag for p2p_dir.
If you agree, I would implement a new tag ID (39) for EXP_PDU_TAG_LINK_DIRECTION in the exported_pdu header.
Regards,
Mauro