Adds OmniLinkMessage (0x10) outer-packet handling to the mock so the
v1 path no longer requires a real panel for testing. Exercised over
UDP because OmniClientV1 is UDP-only by design, but the dispatcher
itself is transport-agnostic and the TCP _handle_client routes
OmniLinkMessage packets through the same _dispatch_v1 method too.
Coverage today:
* RequestSystemInformation (17) -> SystemInformation (18)
* RequestSystemStatus (19) -> SystemStatus (20), 8 area mode bytes
* RequestZoneStatus (21) -> ZoneStatus (22), short + long form
* RequestUnitStatus (23) -> UnitStatus (24), short + long form
(long form auto-selected for indices > 255)
* RequestThermostatStatus (30) -> ThermostatStatus (31)
* RequestAuxiliaryStatus (25) -> AuxiliaryStatus (26) (zero records)
* UploadNames (12) -> NameData (11) streaming, lock-step
Ack-driven across Zone/Unit/Button/
Area/Thermostat, terminated by EOD (3)
* Command (15) -> Ack (5) / Nak (6), reuses v2 state
mutator so light-on/off, set-level,
bypass-zone, restore-zone all work
* ExecuteSecurityCommand (102) -> Ack (5) / ExecuteSecurityCommandResponse
(103) on bad code, with structured
status byte preserved
* MessageCrcError -> v1 Nak (opcode 6)
The dispatcher writes replies wrapped in OmniLinkMessage (16) outer
packets (vs OmniLink2Message (32) used by v2) so OmniClientV1 routes
them correctly. The 4-step handshake is shared with v2 -- it's
protocol-version-agnostic at the outer-packet layer.
UploadNames state is panel-instance scoped via _upload_names_cursor
(int | None) -- there is only one active session at a time on the
mock so a single cursor suffices.
tests/test_e2e_v1_mock.py: 13 cases driving OmniClientV1 through the
mock's UDP socket, covering the full read API + UploadNames streaming
+ write methods + structured-failure path on a wrong security code.
Full suite: 400 passed, 1 skipped (was 387 / 1).
Final cross-reference round, covering the remaining files where wire
bytes have a user- or installer-facing counterpart:
v1/messages.py
New Cross-references block: SETUP ZONES + SETUP TEMPERATURES for the
fields the parsers' raw bytes ultimately come from, and APPENDIX C
for what each synthesized index means on hardware (unit 257+ =
expansion-enclosure outputs, 393+ = panel flags).
models.ZoneStatus
Status-byte bit-layout doc now also points at the Owner's Manual
CONTROL chapter's "View Zone Status" keypad screen -- same Secure /
Not Ready / Trouble / Tamper labels.
models.UnitStatus
State-byte semantics doc references the Owner's Manual CONTROL
chapter for the user-side actions (All On/All Off/Scene/Bright/Dim)
that drive units into each of these states.
mock_panel.py
Notes that the mock's plausible-but-arbitrary RequestProperties /
RequestStatus responses correspond on real hardware to what an
installer typed into INSTALLER SETUP. Production fixtures should
pre-seed MockPanel state to match a known SETUP configuration.
uv.lock
Catches up the project's own entry to omni-pca 2026.5.11 (was
pinned to 2026.5.10 from the previous lock generation).
No code changes; 387 tests still pass.
The C# decompile shows enuOmniLinkConnectionType has both Network_TCP=4
and Network_UDP=3 (clsOmniLinkConnection.cs uses udpSend/tcpSend
parallel paths), and clsHAC carries an enuPreferredNetworkProtocol
{TCP, UDP} per-installation byte. User reports their panel is
configured for UDP. The TCP-only assumption was too narrow.
Wire format is identical: same Packet/Message framing, same handshake,
same per-block whitening, same opcodes, same port. Only differences:
* UDP is connectionless; each datagram = one Packet (no stream framing)
* UDP needs explicit retry-on-timeout for reliability
src/omni_pca/connection.py:
- New constructor args: transport: Literal['tcp','udp']='tcp',
udp_retry_count: int = 3
- connect()/close() branch on transport — TCP keeps the existing
asyncio.open_connection + StreamReader/Writer + reader_task path;
UDP uses asyncio.get_running_loop().create_datagram_endpoint with
remote_addr= so transport.sendto(data) works without per-datagram
addrs. The reader_task is TCP-only.
- _write_packet branches between writer.write and udp_transport.sendto
- request() loops up to (1 + udp_retry_count) attempts on UDP, retrying
on RequestTimeoutError; TCP gets a single attempt (existing behavior)
- New _OmniDatagramProtocol that decodes each datagram into a Packet
and delegates to the shared _dispatch (which already knows how to
route handshake / solicited / unsolicited)
src/omni_pca/mock_panel.py:
- serve(transport='tcp'|'udp') public arg; defaults preserve existing
TCP behavior. Internally splits into _serve_tcp / _serve_udp.
- New _MockServerDatagramProtocol that mirrors _handle_client for UDP.
Tracks one active client by addr (single-session, matches Omni's
single-client constraint). Reuses the panel's existing _dispatch_v2,
_reply_*, _build_* helpers — the dispatch logic is unchanged, only
the transport framing differs.
- New _schedule_udp_push for synthesized SystemEvents (seq=0) push
to the active client's addr after state mutations.
src/omni_pca/client.py:
- OmniClient gains transport= and udp_retry_count= kwargs that pass
through to OmniConnection. Default is 'tcp' so existing callers
are unaffected.
tests/test_e2e_udp.py — 6 e2e tests:
- handshake roundtrip
- get_system_information
- arm area with right code
- arm with wrong code -> CommandFailedError
- turn unit on -> push UnitStateChanged event
- wrong ControllerKey -> HandshakeError
All run under 0.2s. Combined with the existing TCP suite: 357 tests
pass (was 351), ruff clean across src/ tests/.
The HA integration's config_flow still defaults to TCP; users on UDP
panels can manually set transport= via the OmniClient init path. A
follow-up commit will add transport to the HA config flow as a
dropdown option.
The HA coordinator walks ObjectType.THERMOSTAT (6) and ObjectType.BUTTON
(3) via raw RequestProperties to discover them — the high-level
get_object_properties() path only knows zones/units/areas in v1.0. The
mock was returning Nak for both, which made HA discover zero thermostats
and zero buttons no matter how MockState was seeded.
src/omni_pca/mock_panel.py:
- New MockButtonState dataclass (just a name)
- MockState gains buttons: dict[int, MockButtonState] (with the same
bare-string -> dataclass __post_init__ promotion as the others)
- _OBJ_BUTTON = 3, _BUTTON_NAME_LEN = 12, _THERMOSTAT_NAME_LEN = 12
constants
- thermostat_name_bytes() / button_name_bytes() helpers
- _build_thermostat_properties() emits the 23-byte Properties body
matching ThermostatProperties.parse offsets (object number BE u16,
communicating flag, current temp, heat/cool setpoints, system/fan/
hold modes, thermostat type, 12-byte NUL-padded name)
- _build_button_properties() emits the 15-byte body (object number BE
u16 + 12-byte name)
- _reply_properties / _object_store dispatch both new types
tests/test_e2e_client_mock.py — two new e2e tests drive raw
RequestProperties walks for thermostats and buttons against a seeded
mock and assert ThermostatProperties / ButtonProperties parse cleanly,
mirroring what the HA coordinator's _walk_properties() does.
333 tests pass (was 331); ruff clean. Mock surface now matches every
opcode the HA coordinator and entity platforms actually call.
src/omni_pca/client.py — wire OmniClient.events() that returns an async
iterator over typed SystemEvent objects (built on events.EventStream).
src/omni_pca/mock_panel.py — substantial expansion:
- Per-object state dataclasses (MockUnitState, MockAreaState, MockZoneState,
MockThermostatState) plus user_codes table for security validation
- Backward-compat: existing callers passing {idx: 'NAME'} strings still work
via __post_init__ string-promotion to the matching Mock*State instance
- New opcode handlers:
Command (20) -> Ack with state mutation, dispatches
UNIT_ON/OFF/LEVEL, BYPASS/RESTORE_ZONE,
SET_THERMOSTAT_HEAT/COOL/SYS/FAN/HOLD
ExecuteSecurityCommand (74) -> Ack on valid code (mode applied);
Nak on invalid code
RequestStatus (34) -> Status (35) for Zone/Unit/Area/Thermostat
hard-coded record sizes per
clsOL2MsgStatus.cs:13-27
RequestExtendedStatus (58) -> ExtendedStatus (59) with object_length
prefix, richer fields per object type
AcknowledgeAlerts (60) -> Ack
- Synthesized SystemEvents (55) push on state change with seq=0; events round-
trip cleanly through events.parse_events() (validated by tests, not just
asserted in code)
tests/test_e2e_client_mock.py — +9 e2e tests covering arm/disarm with code
validation, unit on/off/level, zone bypass/restore, thermostat setpoint,
push events for arming and unit changes, acknowledge_alerts.
203 passed (was 194), 2 skipped (HA harness + .pca fixture). Ruff clean.
Library v1.0 surface complete: read-only, command, status, extended status,
events. Next: rebuild the HA custom_component on top of this.
