package/network/ipv6/ds-lite/files/dslite.sh

   1 #!/bin/sh
   2 # dslite.sh - IPv4-in-IPv6 tunnel backend
   3 # Copyright (c) 2013 OpenWrt.org
   4
   5 [ -n "$INCLUDE_ONLY" ] || {
   6         . /lib/functions.sh
   7         . /lib/functions/network.sh
   8         . ../netifd-proto.sh
   9         init_proto "$@"
  10 }
  11
  12 proto_dslite_setup() {
  13         local cfg="$1"
  14         local iface="$2"
  15         local link="dslite-$cfg"
  16
  17         local mtu ttl peeraddr ip6addr tunlink zone weakif
  18         json_get_vars mtu ttl peeraddr ip6addr tunlink zone weakif
  19
  20         [ -z "$peeraddr" ] && {
  21                 proto_notify_error "$cfg" "MISSING_ADDRESS"
  22                 proto_block_restart "$cfg"
  23                 return
  24         }
  25
  26         ( proto_add_host_dependency "$cfg" "::" "$tunlink" )
  27
  28         [ -z "$ip6addr" ] && {
  29                 local wanif="$tunlink"
  30                 if [ -z "$wanif" ] && ! network_find_wan6 wanif; then
  31                         proto_notify_error "$cfg" "NO_WAN_LINK"
  32                         return
  33                 fi
  34
  35                 if ! network_get_ipaddr6 ip6addr "$wanif"; then
  36                         [ -z "$weakif" ] && weakif="lan"
  37                         if ! network_get_ipaddr6 ip6addr "$weakif"; then
  38                                 proto_notify_error "$cfg" "NO_WAN_LINK"
  39                                 return
  40                         fi
  41                 fi
  42         }
  43
  44         proto_init_update "$link" 1
  45         proto_add_ipv4_route "0.0.0.0" 0
  46         proto_add_ipv4_address "192.0.0.2" "" "" "192.0.0.1"
  47
  48         proto_add_tunnel
  49         json_add_string mode ipip6
  50         json_add_int mtu "${mtu:-1280}"
  51         json_add_int ttl "${ttl:-64}"
  52         json_add_string local "$ip6addr"
  53         json_add_string remote "$peeraddr"
  54         [ -n "$tunlink" ] && json_add_string link "$tunlink"
  55         proto_close_tunnel
  56
  57         proto_add_data
  58         [ -n "$zone" ] && json_add_string zone "$zone"
  59
  60         json_add_array firewall
  61           json_add_object ""
  62             json_add_string type nat
  63             json_add_string target ACCEPT
  64           json_close_object
  65         json_close_array
  66         proto_close_data
  67
  68         proto_send_update "$cfg"
  69 }
  70
  71 proto_dslite_teardown() {
  72         local cfg="$1"
  73 }
  74
  75 proto_dslite_init_config() {
  76         no_device=1
  77         available=1
  78
  79         proto_config_add_string "ip6addr"
  80         proto_config_add_string "peeraddr"
  81         proto_config_add_string "tunlink"
  82         proto_config_add_int "mtu"
  83         proto_config_add_int "ttl"
  84         proto_config_add_string "zone"
  85         proto_config_add_string "weakif"
  86 }
  87
  88 [ -n "$INCLUDE_ONLY" ] || {
  89         add_protocol dslite
  90 }