module/admin-core/contrib/init.d/luci_freifunk

   1 #!/bin/sh /etc/rc.common
   2 START=70
   3
   4 start() {
   5         include /lib/network
   6         scan_interfaces
   7
   8
   9         ### Read interface names
  10         config_get wanif wan ifname
  11         config_get lanif lan ifname
  12         config_get ffif  ff  ifname
  13
  14         config_get lanip   lan ipaddr
  15         config_get lanmask lan netmask
  16
  17         config_get ffip    ff ipaddr
  18         config_get ffmask  ff netmask
  19
  20         [ -n "$ffif" ] || return 0
  21
  22
  23         ### Creating chains
  24         iptables -N luci_freifunk_forwarding
  25         iptables -t nat -N luci_freifunk_postrouting
  26
  27
  28         ### Read from config
  29         config_load freifunk
  30
  31         config_get_bool internal routing internal
  32         [ -n "$wanif" ] && config_get_bool internet routing internal
  33
  34
  35         ### Freifunk to Freifunk
  36         [ "$internal" -gt 0 ] && {
  37                 iptables -A luci_freifunk_forwarding -i "$ffif" -o "$ffif" -j ACCEPT
  38         }
  39
  40         ### Lan to Freifunk
  41         [ -n "$lanif" ] && {
  42                 eval "$(ipcalc.sh $lanip $lanmask)"
  43
  44                 iptables -A luci_freifunk_forwarding -i "$lanif" -o "$ffif" -j ACCEPT
  45                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$ffif" -j MASQUERADE
  46         }
  47
  48         ### Freifunk to Wan
  49         [ "$internet" -gt 0 ] && {
  50                 eval "$(ipcalc.sh $ffip $ffmask)"
  51
  52                 iptables -A luci_freifunk_forwarding -i "$ffif" -o "$wanif" -j ACCEPT
  53                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$wanif" -j MASQUERADE
  54         }
  55
  56         ### Hook in the chains
  57         iptables -A forwarding_rule -j luci_freifunk_forwarding
  58         iptables -t nat -A postrouting_rule -j luci_freifunk_postrouting
  59 }
  60
  61 stop() {
  62         ### Hook out the chains
  63         iptables -D forwarding_rule -j luci_freifunk_forwarding
  64         iptables -t nat -D postrouting_rule -j luci_freifunk_postrouting
  65
  66         ### Clear the chains
  67         iptables -F luci_freifunk_forwarding
  68         iptables -t nat -F luci_freifunk_postrouting
  69
  70         ### Delete chains
  71         iptables -X luci_freifunk_forwarding
  72         iptables -t nat -X luci_freifunk_postrouting
  73 }