56 lines
1.4 KiB
Bash
56 lines
1.4 KiB
Bash
#!/bin/sh
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# miniupnpd integration for firewall3
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IP6TABLES=/usr/sbin/ip6tables
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iptables -t filter -N MINIUPNPD 2>/dev/null
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iptables -t nat -N MINIUPNPD 2>/dev/null
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[ -x $IP6TABLES ] && $IP6TABLES -t filter -N MINIUPNPD 2>/dev/null
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. /lib/functions/network.sh
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ADDED=0
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add_extzone_rules() {
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local ext_zone=$1
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[ -z "$ext_zone" ] && return
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# IPv4 - due to NAT, need to add both to nat and filter table
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iptables -t filter -I zone_${ext_zone}_forward -j MINIUPNPD
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iptables -t nat -I zone_${ext_zone}_prerouting -j MINIUPNPD
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# IPv6 if available - filter only
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[ -x $IP6TABLES ] && {
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$IP6TABLES -t filter -I zone_${ext_zone}_forward -j MINIUPNPD
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}
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ADDED=$(($ADDED + 1))
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}
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# By default, user configuration is king.
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for ext_iface in $(uci -q get upnpd.config.external_iface); do
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add_extzone_rules $(fw3 -q network "$ext_iface")
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done
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add_extzone_rules $(uci -q get upnpd.config.external_zone)
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[ ! $ADDED = 0 ] && exit 0
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# If really nothing is available, resort to network_find_wan{,6} and
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# assume external interfaces all have same firewall zone.
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# (This heuristic may fail horribly, in case of e.g. multihoming, so
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# please set external_zone in that case!)
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network_find_wan wan_iface
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network_find_wan6 wan6_iface
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for ext_iface in $wan_iface $wan6_iface; do
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# fw3 -q network fails on sub-interfaces => map to device first
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network_get_device ext_device $ext_iface
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add_extzone_rules $(fw3 -q device "$ext_device")
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done
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