Hi all,
I am storing 3GPP messages in exported_pdu format (e.g., plain NAS messages, 5G NR signalling...), and I am looking for a way to store the direction of the packet: uplink or downlink. I know that for some packet the direction is known from the protocol, but
for other it is not and I would like to have it saved in the exported_pdu header.
In the exported_pdu format, I see there is a tag EXP_PDU_TAG_P2P_DIRECTION that sets the
p2p_dir field of the packet. Looking at the comments in packet_info.h I can see that both
p2p_dir and link_dir exist, and I am not sure about the difference and whether we need to add a tag for link_dir in the exported_pdu format.
Can you please help me understand this difference?
I can create a MR to add a new tag for link_dir if that is the right approach.
Thanks,
Mauro Levra