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openmptcprouter-feeds/openmptcprouter/files/etc/firewall.ttl
2024-10-29 09:34:53 +01:00

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603 B
Turtle

#!/bin/sh
. /lib/functions.sh
_set_ttl() {
device=$(uci -q get network.$1.name)
ttl=$(uci -q get network.$1.ttl)
if [ -n "$ttl" ]; then
if [ -e /usr/sbin/iptables-nft ] && [ -z "$(nft list ruleset 2>/dev/null | grep ttl | grep $device)" ]; then
nft add rule inet fw4 mangle_forward oifname $device ip ttl set $ttl >/dev/null 2>&1
elif [ ! -e /usr/sbin/iptables-nft ] && [ -z "$(iptables-save 2>/dev/null | grep TTL | grep $device)" ]; then
iptables -w -t mangle -I POSTROUTING -o $device -j TTL --ttl-set $ttl >/dev/null 2>&1
fi
fi
}
config_load network
config_foreach _set_ttl device