43 lines
1.2 KiB
Bash
43 lines
1.2 KiB
Bash
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#!/bin/sh
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# Check if the required parameters are provided
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if [ "$#" -ne 2 ]; then
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echo "Usage: $0 <enable|disable> <ttl_value>"
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exit 1
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fi
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# Assign the provided parameters to variables
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mode="$1"
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ttl_value="$2"
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# Check if iptables is still set
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ttlcheck=$(/opt/bin/sudo /usr/sbin/iptables -w 5 -t mangle -vnL | grep TTL | awk '{print $13}')
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# If TTL is still set, manually remove values
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if [ ! -z "${ttlcheck}" ]; then
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/opt/bin/sudo /usr/sbin/iptables -w 5 -t mangle -D POSTROUTING -o rmnet+ -j TTL --ttl-set "${ttlcheck}" &>/dev/null || true
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/opt/bin/sudo /usr/sbin/ip6tables -w 5 -t mangle -D POSTROUTING -o rmnet+ -j HL --hl-set "${ttlcheck}" &>/dev/null || true
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fi
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# Handle the enable/disable mode
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case "${mode}" in
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enable)
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# Echo TTL to file
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echo "${ttl_value}" > /usrdata/simplefirewall/ttlvalue
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# Set Start Service
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/opt/bin/sudo /usrdata/simplefirewall/ttl-override start
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;;
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disable)
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# Remove TTL value file
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rm -f /usrdata/simplefirewall/ttlvalue
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# Stop the service
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/opt/bin/sudo /usrdata/simplefirewall/ttl-override stop
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;;
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*)
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echo "Invalid mode: ${mode}"
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echo "Usage: $0 <enable|disable> <ttl_value>"
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exit 1
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;;
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esac
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