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110 lines
2.6 KiB
Plaintext
110 lines
2.6 KiB
Plaintext
4 years ago
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#!/bin/sh
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. /lib/functions.sh
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# uci_ lib works on temporary config files here which are not persistent
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UCI_CONFIG_DIR=/var/run
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CONFIG=plc-standby
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STANDBY_TIMER=${1:-600}
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SWITCHED_OFF=0
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if [ -f /lib/ar71xx.sh ]; then
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PLATFORM=ar71xx
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. /lib/ar71xx.sh
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elif [ -f /lib/ipq806x.sh ]; then
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PLATFORM=ipq806x
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. /lib/ipq806x.sh
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fi
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board=$(${PLATFORM}_board_name)
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uptime_seconds() {
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(IFS="." read a b </proc/uptime; echo "$a")
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}
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restart_timer() {
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uci_set $CONFIG status timeout "$(( $(uptime_seconds) + $STANDBY_TIMER ))"
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uci_commit $CONFIG
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}
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get_wlan_devices() {
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uci_get $CONFIG status wlandevs
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}
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get_timer() {
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uci_get $CONFIG status timeout
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}
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# we are started with the plc, so restart standby timeout
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restart_timer
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while :; do
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SLEEP=30
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timeout=$(get_timer)
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devices=$(get_wlan_devices)
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if [ -z "$devices" ]; then
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debug "standby timeout expires at $timeout"
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swports=
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case "$board" in
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dlan-pro-1200-ac|\
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dlan-pro-1200-n)
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# for 1200+ WiFi ac: does port 3 or 4 have a link?
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swports="(3||4)"
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;;
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dlan-1000-ac)
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# for 1000 ac: does port 2 or 3 have a link?
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swports="(2||3)"
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;;
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dlan-550-wifi)
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# for 550: does port 2 have a link?
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swports="2"
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;;
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# TODO specify link detection for switchless devices supported
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*)
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# current default: never enter standby
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links=true
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;;
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esac
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if [ -n "$swports" ]; then
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# (jsonfilter not documented, but works similar to
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# http://goessner.net/articles/JsonPath/, or look at the jsonfilter grammar)
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# get all the link values of specified ports with link=true, if not empty one eth port has a link
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links=$(ubus call network.swconfig status '{"switch":"switch0"}'|jsonfilter -l 1 -e '$.ports['"$swports"'&&@.link=true].link')
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fi
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if [ -n "$links" ]; then
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# restart timeout if ethernet ports are up
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debug "restart standby timer (eth)"
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restart_timer
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[ $SWITCHED_OFF = 1 ] && {
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[ -x /etc/init.d/plc ] && /etc/init.d/plc normal
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[ -x /etc/init.d/ghn ] && /etc/init.d/ghn normal
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SWITCHED_OFF=0
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}
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else
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# if down let the timer expire
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[ "$(uptime_seconds)" -ge "$timeout" ] && [ $SWITCHED_OFF = 0 ] && {
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# enter plc standby if timed out
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debug "standby timer expired"
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[ -x /etc/init.d/plc ] && /etc/init.d/plc standby
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[ -x /etc/init.d/ghn ] && /etc/init.d/ghn standby
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SWITCHED_OFF=1
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}
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# if timeout active check every few seconds if ports went up again
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SLEEP=5
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fi
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else
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debug "restart standby timer (wifi)"
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restart_timer
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[ $SWITCHED_OFF = 1 ] && {
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[ -x /etc/init.d/plc ] && /etc/init.d/plc normal
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[ -x /etc/init.d/ghn ] && /etc/init.d/ghn normal
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SWITCHED_OFF=0
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}
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fi
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sleep $SLEEP
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done
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