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#!/bin/sh
# Freifunk Firewall addons
# $Id$
#
# Apply advanced settings
#
apply_advanced() {
local tcp_ecn
local tcp_window_scaling
local accept_redirects
local accept_source_route
config_get_bool tcp_ecn $1 tcp_ecn 1
config_get ip_conntrack_max $1 ip_conntrack_max
config_get_bool tcp_westwood $1 tcp_westwood 0
config_get_bool tcp_window_scaling $1 tcp_window_scaling 1
config_get_bool accept_redirects $1 accept_redirects 0
config_get_bool accept_source_route $1 accept_source_route 0
logger -t firewall.freifunk "tcp_ecn is $tcp_ecn"
logger -t firewall.freifunk "tcp_window_scaling is $tcp_window_scaling"
logger -t firewall.freifunk "accept_redirects is $accept_redirects"
logger -t firewall.freifunk "accept_source_route is $accept_source_route"
sysctl -w net.ipv4.tcp_ecn=$tcp_ecn >/dev/null
sysctl -w net.ipv4.tcp_window_scaling=$tcp_window_scaling >/dev/null
sysctl -w net.ipv4.tcp_westwood=$tcp_westwood >/dev/null
sysctl -w net.ipv4.ip_conntrack_max=$ip_conntrack_max >/dev/null
for f in /proc/sys/net/ipv4/conf/*/accept_redirects; do
echo $accept_redirects > $f
done
for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do
echo $accept_source_route > $f
done
}
config_foreach apply_advanced advanced
#
# Apply fixes for masquerading rules
#
apply_nat_fix() {
local up
local ifname
config_get up $1 up
[ -n "$up" ] || return 0
(ACTION="ifup" INTERFACE="$1" . /etc/hotplug.d/iface/22-firewall-nat-fix )
}
uci_set_state firewall core loaded 1
config_foreach fw_addif interface
config_foreach apply_nat_fix interface
[ -x /etc/init.d/luci_splash ] && /etc/init.d/luci_splash start
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