82 lines
2.3 KiB
Desktop File
Executable File
82 lines
2.3 KiB
Desktop File
Executable File
# apt install --no-install-recommends libqmi-utils ifmetric
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# cp -v ./qmi-network@.service /etc/systemd/system/
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# systemctl daemon-reload
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# systemctl enable --now qmi-network@0
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# This will NOT work without a .network for your wwan device.
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[Unit]
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Description=qmi-network for cdc-wdm%i device
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Before=freepbx.service
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Before=asterisk.service
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Requires=sys-subsystem-net-devices-wwan%i.device
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[Service]
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Type=simple
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Restart=always
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RestartSec=60s
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TimeoutSec=120s
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KillMode=process
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##
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# A note on metrics.
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# The lower the value the more priority the route has over others.
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# Normal metric (Set this higher so it won't be used over the default
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# route).
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Environment=NMETRIC=2048
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# Failover metric (Set this lower so it's the default route when other
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# routes fail).
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Environment=FOMETRIC=128
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# Ping host.
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Environment=PHOST="dns9.quad9.net"
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Environment=PHOSTIP="9.9.9.9"
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# Ping test interval.
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Environment=PTESTINT=20
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# Ping timeout. (Ping timeout / knock-out)
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Environment=PTESTKO=30
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# Ping count (Number of pings).
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Environment=PTESTCOUNT=3
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##
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# Make sure the state is cleared before starting.
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ExecStartPre=-rm /tmp/qmi-network-state-cdc-wdm%i
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# Stop wwan so it can be reconfigured.
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ExecStartPre=networkctl down wwan%i
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# Raw IP must be enabled.
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ExecStartPre=sh -c "echo 'Y' | tee /sys/class/net/wwan%i/qmi/raw_ip"
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# Bring up the network.
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ExecStartPre=networkctl up wwan%i
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# Start the network via qmi-network scripts.
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# As some networks and/or devices take a long time to connect we should
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# give it some time to be ready before starting the connection process.
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ExecStartPre=-sh -e -c "sleep 5; qmi-network /dev/cdc-wdm%i start && sleep 5;"
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# Do a test ping before we start the main loop.
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ExecStartPre=sh -e -c "ping -w ${PTESTKO} -I wwan%i -c ${PTESTCOUNT} ${PHOSTIP}"
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# Main loop with **very basic** failover.
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ExecStart=sh -e -c "while true; do ping -w ${PTESTKO} -I wwan%i -c ${PTESTCOUNT} ${PHOSTIP} 2>&1 >/dev/null; (ping -w ${PTESTKO} -c ${PTESTCOUNT} ${PHOST} 2>&1 >/dev/null && ifmetric wwan%i ${NMETRIC}) || (ping -w ${PTESTKO} -I wwan%i -c ${PTESTCOUNT} ${PHOST} 2>&1 >/dev/null && ifmetric wwan%i ${FOMETRIC}); sleep ${PTESTINT}; done;"
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# Stop.. DOWN TIME!
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ExecStop=networkctl down wwan%i
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ExecStop=qmi-network /dev/cdc-wdm%i stop
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# Be sure the network state is cleared on stop too.
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ExecStop=-rm /tmp/qmi-network-state-cdc-wdm%i
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[Install]
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WantedBy=sys-subsystem-net-devices-wwan%i.device
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