init.d: openwrt min disk space startup

init.d/openwrt-minimal/readme.txt

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+Minimal tpws startup script for low storage openwrt with nftables.
+No opkg dependencies required !
+
+* install :
+
+Make sure you are running openwrt with nftables, not iptables.
+Copy everything from tpws directory to the root of the router.
+Copy tpws binary for your architecture to /usr/bin/tpws
+Set proper access rights : chmod 755 /etc/init.d/tpws /usr/bin/tpws
+EDIT /etc/config/tpws
+/etc/init.d/tpws enable
+/etc/init.d/tpws start
+fw4 reload
+
+* full uninstall :
+
+/etc/init.d/tpws disable
+/etc/init.d/tpws stop
+rm -f /etc/nftables.d/90-tpws.nft /etc/init.d/tpws
+fw4 restart

init.d/openwrt-minimal/tpws/etc/init.d/tpws

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+#!/bin/sh /etc/rc.common
+
+TPWS_DEFAULT=/usr/bin/tpws
+TPWS_USER_DEFAULT=daemon
+
+START=99
+STOP=01
+USE_PROCD=1
+
+tpws_instance()
+{
+	config_get "$@"
+
+	local enabled port opt
+
+	config_get_bool enabled "$1" enabled 0
+	[ "$enabled" -eq 1 ] || return 1
+
+	config_get port "$1" port
+	config_get opt "$1" opt
+
+	local COMMAND="$TPWS --user=$TPWS_USER --port=$port $opt"
+	procd_open_instance
+	procd_set_param command $COMMAND
+	procd_close_instance
+}
+
+start_service()
+{
+	config_load tpws
+	config_get TPWS_USER defaults user $TPWS_USER_DEFAULT
+	config_get TPWS defaults tpws $TPWS_DEFAULT
+	config_foreach tpws_instance tpws
+}

init.d/openwrt-minimal/tpws/etc/nftables.d/90-tpws.nft

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+chain tpws_re {
+	type nat hook prerouting priority dstnat; policy accept;
+	tcp dport {80,443} redirect to :900
+}
+chain tpws_out {
+	type nat hook output priority -100; policy accept;
+	tcp dport {80,443} skuid != daemon redirect to :900
+}