tree 2717c50e69e39a1177e7472cff7d1ecb6ca2f01c
parent 787a064236c51f0f7164500e7559fc7db1226f5c
author Daniele Moro <daniele@opennetworking.org> 1621255771 +0200
committer Daniele Moro <daniele@opennetworking.org> 1621508345 +0200

Ensure P4Runtime byte strings are padded to their bit width

The P4Runtime server may send canonical byte strings (i.e.,
non-padded byte strings).
In ONOS we ensure, in the codecs, that all byte strings are
padded to match the model (P4Info) bit width. In this way,
we provide read-write symmetry inside ONOS.
ONOS always pads byte strings when sending messages to the
P4Runtime server.
This patch doesn't enforce read-write symmetry between
P4Runtime client and server on the wire.

N.B.: the current padding implementation works ONLY when
using non-negative integer.

Change-Id: I9f8e43de015bd0929dd543d7688c8e71bf5fe98d