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51 lines
1.2 KiB
51 lines
1.2 KiB
#!/bin/sh
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next_port () {
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local port_start=$1
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local port_end=$2
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ports=$(wg show all listen-port | awk '{print $2}')
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for i in $(seq "$port_start" "$port_end"); do
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if ! echo "$ports" | grep -q "$i"; then
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echo "$i"
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return
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fi
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done
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}
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cleanup_wginterfaces() {
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check_wg_neighbors
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}
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delete_wg_interface() {
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ip link del dev "$1"
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[ -f "/tmp/run/wgserver/$1.key" ] && rm "/tmp/run/wgserver/$1.key"
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[ -f "/tmp/run/wgserver/$1.pub" ] && rm "/tmp/run/wgserver/$1.pub"
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}
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check_wg_neighbors() {
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wg_interfaces=$(ip link | grep wg | awk '{print $2}' | sed 's/://')
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for phy in $wg_interfaces; do
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linklocal=$(ip -6 addr list dev "$phy" | grep "scope link" | awk '{print $2}' | sed 's/\/64//') 2>/dev/null
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ips=$(ping ff02::1%"$phy" -w5 -W5 -c10 | awk '/from/{print($4)}' | sed 's/.$//') 2>/dev/null
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delete=1
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for ip in $ips; do
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if [ "$ip" != "$linklocal" ] && [ "$(owipcalc $ip linklocal)" -eq 1 ]; then
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delete=0
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break
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fi
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done
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if [ $delete -eq 1 ]; then
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delete_wg_interface "$phy"
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fi
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done
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}
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case $1 in
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next_port|\
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cleanup_wginterfaces)
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"$@"
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exit
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;;
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esac
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