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feat(otbr): Add option to override backbone interface #4298

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feat(otbr): Add option to override backbone interface #4298

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1 change: 1 addition & 0 deletions openthread_border_router/config.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ schema:
device: device(subsystem=tty)
baudrate: list(57600|115200|230400|460800|921600|1000000)
flow_control: bool
backbone_interface: str?
network_device: str?
otbr_log_level: list(debug|info|notice|warning|error|critical|alert|emergency)
firewall: bool
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26 changes: 21 additions & 5 deletions openthread_border_router/rootfs/etc/s6-overlay/s6-rc.d/otbr-agent/run
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Expand Up @@ -23,7 +23,11 @@ if bashio::config.exists 'autoflash_firmware'; then
bashio::addon.option 'autoflash_firmware'
fi

backbone_if="$(bashio::api.supervisor 'GET' '/network/info' '' 'first(.interfaces[] | select (.primary == true)) .interface')"
backbone_if=""
if bashio::config.has_value 'backbone_interface'; then
backbone_if="$(bashio::config 'backbone_interface')"
fi

device=$(bashio::config 'device')

if bashio::config.has_value 'network_device'; then
Expand Down Expand Up @@ -72,10 +76,22 @@ case "${otbr_log_level}" in
;;
esac

# shellcheck disable=SC2086
if [ -z ${backbone_if} ]; then
bashio::log.warning "No primary network interface found! Using static eth0."
backbone_if="eth0"
# Fallback to primary supervisor network interface
if [ -z "${backbone_if}" ]; then
backbone_if="$(bashio::api.supervisor 'GET' '/network/info' '' 'first(.interfaces[] | select (.primary == true)) .interface')"
if [ -n "${backbone_if}" ]; then
bashio::log.warning "No network interface configured! Using primary interface instead (${backbone_if})."
fi
fi

# Fallback to first available enabled interface if backbone_if is still empty
if [ -z "${backbone_if}" ]; then
backbone_if="$(ip -br link show up | awk '$1 != "lo" {print $1; exit}')"
if [ -z "${backbone_if}" ]; then
bashio::exit.nok "No enabled network interface found."
fi

bashio::log.warning "Using fallback interface: ${backbone_if}"
fi

# shellcheck disable=SC2015
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5 changes: 5 additions & 0 deletions openthread_border_router/translations/en.yaml
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Expand Up @@ -10,6 +10,11 @@ configuration:
flow_control:
name: Hardware flow control
description: Enable hardware flow control for serial port.
backbone_interface:
name: Backbone Network Interface
description: >-
The network interface used for the backbone network.
If not specified, it falls back to the primary interface.
network_device:
name: Network Device
description: >-
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