- Compare received ids by length and bytes, so an id with an embedded NUL
cannot read past the configured string
- Fail setup when max_packet_size cannot hold the device name and the
longest entity id, instead of skipping the id at every resend
- Reject two entities of one type sent with the same id
- Avoid an unused variable without remote entities
- Use matching ids in the test configuration
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sends sensor and binary sensor states to other devices over a packet
interface. A dictionary sent on connect, on request and at an interval
names the entities, so data packets refer to them by number. The update
interval and the handling of a lost peer follow the layers the interface
has, and remote states can time out.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The rolling code accepts a packet only once the peer has sent back this
device's boot number, so a device that only receives never gets a packet.
The session's keep-alives make sure packets go both ways.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The session layer sends keep-alives and reports whether the peer can be
reached, including after it restarts or a reliability layer below loses
data. The encryption layer encrypts and checks each packet with XXTEA,
with an optional rolling code against replays. Components that a layer
needs, such as binary_sensor, are loaded only when it is configured.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Such a type would be missing from the link schema, and selecting it would
fail with an unrelated error.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Every module in layers/ is imported automatically, so two modules
registering the same name silently replaced one with the other, in an
order decided by pkgutil. Registration now raises, so the mistake is
found when the configuration is loaded.
Co-Authored-By: Claude Code <noreply@anthropic.com>
- Reset the link after max_retries even when it is 255, where the retry
counter used to wrap
- Require a reliability timeout of at least 50 ms
- Drop received frames larger than the layer's max_packet_size
- Fail setup, instead of aborting, when the send queue cannot be
allocated or max_packet_size leaves no room
- Test the ack delay timer and a refused REJ
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Layers stack on a link and are configured on its packet_interface entry.
Each layer type registers itself with its kind, so a new type needs only
a new module. The first is a reliability layer in the style of HDLC
asynchronous balanced mode, with go-back-N retransmission.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Each packet is one UDP datagram, using the settings of the udp component.
The udp component now reports whether a packet was sent, and an ENOMEM
refusal from lwIP is logged at verbose level as the packet can be sent
again.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A packet interface moves packets over a channel, with a uart link and a
packet_transport platform that uses any packet interface. Later layers
stack on the same base class.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>
