Changelog

v4.4.1

Improvements

Update internal dependencies and tune feature flags.

Bugfixes

Fix keep_alive_interval in config template.
Do not encode null values to JSON for Semtech UDP backend.

This updates the Concentratord ZMQ API interface to be compatible with the ChirpStack Concentratord v4.5+ and ChirpStack Gateway Mesh v4.1+. If using the Concentratord backend, make sure to update this / these component(s) too.

Mesh events / commands

This refactors the Gateway Mesh heartbeat payload into a more generic Mesh Event payload, which can be used by both "known" and "proprietary" event types. The first implemented "known" type is the heartbeat. It also implements Mesh commands that can be used to execute commands configured on the Relay gateway.

Bugfixes

Handle ant payload sent by Tektelic gateways. (#691)
Fix handling of negative altitude. (#66)

v4.3.2

Features

Add MQTT connection callback configuration (e.g. to exec. command to turn on / off LED on gateway).

Improvements

Make MQTT re-connect interval configurable through reconnect_interval config option. (#63)
On startup, validate that Gateway ID is 8-bytes. (#65)
Update internal dependencies.

v4.3.1

Features

Implement handling of ChirpStack Gateway Mesh heartbeat messages.

Improvements

Update internal dependencies.

Bugfixes

Spawn message-callback to not block MQTT eventloop. (#57)

v4.3.0

Features

Expose duty-cycle stats exposed by ChirpStack Concentratord.
Make it possible to use environment variables in configuration (like ChirpStack).

Improvements

Update internal dependencies.

v4.2.3

Improvements

Add keep_alive_interval config option for MQTT. (#54)
Update internal dependencies.

v4.2.2

Bugfixes

Fix mips corrupted payloads regression re-introduced by v4.2.1. (#50)

v4.2.1

Bugfixes

Fix firewall security issue on Kerlink gateways.

v4.2.0

Features

`paho-mqtt` to `rumqttc` refactor

This refactors the code to use rumqttc instead of paho-mqtt as MQTT client library. As rumqttc is a pure-Rust MQTT client, which uses rustls for TLS, it is no longer needed to statically link against OpenSSL.

Improvements

Add AMD64 build. (#46)
Reconnect ZeroMQ REQ socket on error.
Update dependencies.

Bugfixes

Fix extending meta-data in Concentratord backend.
Fix udp_bind > bind error in config examples. (#49)
Fix corrupted payloads on mips / mipsel platforms. (#50, #52)

v4.1.3

Improvements

Update RAK packaging for WisGateOS2 v2.2+.
Implement preamble and no_crc fields.
Update internal dependencies.

v4.1.2

Features

Provide package for Multitech Conduit AP3.

Improvements

Update internal dependencies.

v4.1.1

Improvements

Add packaging for RAK ramips_24kec based gateways.
Update internal dependencies.

Bugfixes

Fix setting empty username and password in MQTT. (#257)

v4.1.0

Features

Improvements

DevAddr and JoinEUI filters

This adds a [backend.filters] configuration section under which it is possible to configure the prefix-filters for DevAddr (data uplink) and JoinEUIs (join-requests).

Time fallback

This adds a time_fallback_enabled configuration option to the semtech_udp section. If enabled and no RX time is provided by the packet-forwarder, then the ChirpStack MQTT Forwarder server-time will be used as fallback.

Build improvements

The provided pre-compiled binaries are fully static and based on musl libc. This removes the need to compile against a very old verion of glibc to stay compatible with old gateway firmwares.

Other improvements

Update dependencies.

Bugfixes

Fix bootstript for Dragino .ipk package.

v4.0.0

This marks the initial release of the ChirpStack MQTT Forwarder.

The ChirpStack MQTT Forwarder is a re-implementation of the ChirpStack Gateway Bridge for gateway installations only. The aim of this component is to provide a more lightweight solution, that also can be installed on gateways with a limited amount of memory (for example Dragino OpenWRT based gateways).