modules/freifunk/root/etc/firewall.freifunk

   1 #!/bin/sh
   2 # Freifunk Firewall addons
   3 # $Id$
   4
   5
   6 #
   7 # Apply advanced settings
   8 #
   9 apply_advanced() {
  10         local tcp_ecn
  11         local tcp_window_scaling
  12         local accept_redirects
  13         local accept_source_route
  14
  15         config_get_bool tcp_ecn $1 tcp_ecn 1
  16         config_get ip_conntrack_max $1 ip_conntrack_max
  17         config_get_bool tcp_westwood $1 tcp_westwood 0
  18         config_get_bool tcp_window_scaling $1 tcp_window_scaling 1
  19         config_get_bool accept_redirects $1 accept_redirects 0
  20         config_get_bool accept_source_route $1 accept_source_route 0
  21
  22         logger -t firewall.freifunk "tcp_ecn is $tcp_ecn"
  23         logger -t firewall.freifunk "tcp_window_scaling is $tcp_window_scaling"
  24         logger -t firewall.freifunk "accept_redirects is $accept_redirects"
  25         logger -t firewall.freifunk "accept_source_route is $accept_source_route"
  26
  27         sysctl -w net.ipv4.tcp_ecn=$tcp_ecn >/dev/null
  28         sysctl -w net.ipv4.tcp_window_scaling=$tcp_window_scaling >/dev/null
  29         sysctl -w net.ipv4.tcp_westwood=$tcp_westwood >/dev/null
  30         sysctl -w net.ipv4.ip_conntrack_max=$ip_conntrack_max >/dev/null
  31
  32         for f in /proc/sys/net/ipv4/conf/*/accept_redirects; do
  33                 echo $accept_redirects > $f
  34         done
  35
  36         for f in /proc/sys/net/ipv4/conf/*/accept_source_route; do
  37                 echo $accept_source_route > $f
  38         done
  39 }
  40
  41 config_foreach apply_advanced advanced
  42
  43
  44 #
  45 # Apply fixes for masquerading rules
  46 #
  47 apply_nat_fix() {
  48         local up
  49         local ifname
  50         config_get up $1 up
  51         [ -n "$up" ] || return 0
  52         (ACTION="ifup" INTERFACE="$1" . /etc/hotplug.d/iface/22-firewall-nat-fix )
  53 }
  54
  55 uci_set_state firewall core loaded 1
  56 config_foreach fw_addif interface
  57 config_foreach apply_nat_fix interface
  58
  59 [ -x /etc/init.d/luci_splash ] && ( sleep 3; /etc/init.d/luci_splash restart )&
  60
  61 [ -x /etc/init.d/freifunk-p2pblock ] && /etc/init.d/freifunk-p2pblock enabled && \
  62         ( sleep 3; /etc/init.d/freifunk-p2pblock restart )&