Hi,
I was very liberal in just using numbers from the 'open' number range.
huh ? Where do you do that ?
I would propose to do something like this
struct ipa_proto_hdr { uint16_t len; uint8_t proto; data[0]; } packed;
struct osmo_ipa_proto_hdr { uint8_t osmo_proto; data[0]; } packed;
looks like a sane idea to me. Plus it makes the header 32 bits ...
Sylvain