modules/freifunk/root/etc/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 "$ffif" -j ACCEPT
  42         }
  43
  44         ### Freifunk DHCP to Freifunk
  45         [ "$internal" -gt 0 -a -n "$ffdif" ] && {
  46                 eval "$(ipcalc.sh $ffdip $ffdmask)"
  47
  48                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$ffif" -j MASQUERADE
  49         }
  50
  51         ### Lan to Freifunk
  52         [ -n "$lanif" ] && {
  53                 eval "$(ipcalc.sh $lanip $lanmask)"
  54
  55                 iptables -A luci_freifunk_forwarding -i "$lanif" -o "$ffif" -j ACCEPT
  56                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$ffif" -j MASQUERADE
  57         }
  58
  59         ### Freifunk to Wan
  60         [ "$internet" -gt 0 ] && {
  61                 eval "$(ipcalc.sh $ffip $ffmask)"
  62
  63                 iptables -A luci_freifunk_forwarding -i "$ffif" -o "$wanif" -j ACCEPT
  64                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$wanif" -j MASQUERADE
  65         }
  66
  67         ### Freifunk DHCP to Wan
  68         [ "$internet" -gt 0 -a -n "$ffdif" ] && {
  69                 eval "$(ipcalc.sh $ffdip $ffdmask)"
  70
  71                 iptables -t nat -A luci_freifunk_postrouting -s "$NETWORK/$PREFIX" -o "$wanif" -j MASQUERADE
  72         }
  73
  74         ### Hook in the chains
  75         iptables -A forwarding_rule -j luci_freifunk_forwarding
  76         iptables -t nat -A postrouting_rule -j luci_freifunk_postrouting
  77 }
  78
  79 stop() {
  80         ### Hook out the chains
  81         iptables -D forwarding_rule -j luci_freifunk_forwarding
  82         iptables -t nat -D postrouting_rule -j luci_freifunk_postrouting
  83
  84         ### Clear the chains
  85         iptables -F luci_freifunk_forwarding
  86         iptables -t nat -F luci_freifunk_postrouting
  87
  88         ### Delete chains
  89         iptables -X luci_freifunk_forwarding
  90         iptables -t nat -X luci_freifunk_postrouting
  91 }