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         config_get ffdif ffdhcp  ifname
  14
  15         config_get lanip   lan ipaddr
  16         config_get lanmask lan netmask
  17
  18         config_get ffip    ff ipaddr
  19         config_get ffmask  ff netmask
  20
  21         config_get ffdip   ffdhcp ipaddr
  22         config_get ffdmask ffdhcp netmask
  23
  24         [ -n "$ffif" ] || return 0
  25
  26
  27         ### Creating chains
  28         iptables -N luci_freifunk_forwarding
  29         iptables -t nat -N luci_freifunk_postrouting
  30
  31
  32         ### Read from config
  33         config_load freifunk
  34
  35         config_get_bool internal routing internal
  36         [ -n "$wanif" ] && config_get_bool internet routing internet
  37
  38
  39         ### Freifunk to Freifunk
  40         [ "$internal" -gt 0 ] && {
  41                 iptables -A luci_freifunk_forwarding -i "$ffif" -o "$ffif" -j ACCEPT
  42         }
  43
  44         ### Lan to Freifunk
  45         [ -n "$lanif" ] && {
  46                 eval "$(ipcalc.sh $lanip $lanmask)"
  47
  48                 iptables -A luci_freifunk_forwarding -i "$lanif" -o "$ffif" -j ACCEPT
  49                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$ffif" -j MASQUERADE
  50         }
  51
  52         ### Freifunk to Wan
  53         [ "$internet" -gt 0 ] && {
  54                 eval "$(ipcalc.sh $ffip $ffmask)"
  55
  56                 iptables -A luci_freifunk_forwarding -i "$ffif" -o "$wanif" -j ACCEPT
  57                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$wanif" -j MASQUERADE
  58         }
  59
  60         ### Freifunk DHCP to Wan
  61         [ "$internet" -gt 0 -a -n "$ffdif" ] && {
  62                 eval "$(ipcalc.sh $ffdip $ffdmask)"
  63
  64                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$wanif" -j MASQUERADE
  65         }
  66
  67         ### Hook in the chains
  68         iptables -A forwarding_rule -j luci_freifunk_forwarding
  69         iptables -t nat -A postrouting_rule -j luci_freifunk_postrouting
  70 }
  71
  72 stop() {
  73         ### Hook out the chains
  74         iptables -D forwarding_rule -j luci_freifunk_forwarding
  75         iptables -t nat -D postrouting_rule -j luci_freifunk_postrouting
  76
  77         ### Clear the chains
  78         iptables -F luci_freifunk_forwarding
  79         iptables -t nat -F luci_freifunk_postrouting
  80
  81         ### Delete chains
  82         iptables -X luci_freifunk_forwarding
  83         iptables -t nat -X luci_freifunk_postrouting
  84 }