tree 48ab00c0eef9a4cae744c5bde240fbbea394f515
parent 32a19509597ef31d8d229ee8de0c6fa2227cd624
author Henri Chataing <henrichataing@google.com> 1654712427 -0700
committer Henri Chataing <henrichataing@google.com> 1654721065 -0700

Handle packet parsing errors

Improperly formatted packets, or unknown group or opcode
identifiers would raise an error in the connection task,
which caused the host disconnection.

Parsing errors are now caught and suitable error responses
are generated:
- if the packet is not a command, it is ignored
  (no response to the host)
- if the group identifier is unknown, with the
  status UNKNOWN_GID
- if the opcode identifier is unknown, with the
  status UNKNOWN_OID

Misformatted packets cannot be easily differentiated from
command packets with unknown opcodes, and the same
status code UNKNOWN_OID is returned instead of
SYNTAX_ERROR.

Bug: 232286701
Change-Id: I215fbbc262315b7cf8bb74a94d6458f010c59e70