diff options
Diffstat (limited to 'modules/freifunk/root/etc/firewall.freifunk')
| -rw-r--r-- | modules/freifunk/root/etc/firewall.freifunk | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/modules/freifunk/root/etc/firewall.freifunk b/modules/freifunk/root/etc/firewall.freifunk new file mode 100644 index 0000000000..ac3fcc55df --- /dev/null +++ b/modules/freifunk/root/etc/firewall.freifunk @@ -0,0 +1,51 @@ +#!/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_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 + + 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 ) +} + +config_foreach apply_nat_fix interface |