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
  18         json_get_vars mtu ttl peeraddr ip6addr tunlink
  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                         proto_notify_error "$cfg" "NO_WAN_LINK"
  37                         return
  38                 fi
  39         }
  40
  41         proto_init_update "$link" 1
  42         proto_add_ipv4_route "0.0.0.0" 0
  43         proto_add_ipv4_address "192.0.0.2" "" "" "192.0.0.1"
  44
  45         proto_add_tunnel
  46         json_add_string mode ipip6
  47         json_add_int mtu "${mtu:-1280}"
  48         json_add_int ttl "${ttl:-64}"
  49         json_add_string local "$ip6addr"
  50         json_add_string remote "$peeraddr"
  51         [ -n "$tunlink" ] && json_add_string link "$tunlink"
  52         proto_close_tunnel
  53
  54         proto_send_update "$cfg"
  55 }
  56
  57 proto_dslite_teardown() {
  58         local cfg="$1"
  59 }
  60
  61 proto_dslite_init_config() {
  62         no_device=1
  63         available=1
  64
  65         proto_config_add_string "ip6addr"
  66         proto_config_add_string "peeraddr"
  67         proto_config_add_string "tunlink"
  68         proto_config_add_int "mtu"
  69         proto_config_add_int "ttl"
  70 }
  71
  72 [ -n "$INCLUDE_ONLY" ] || {
  73         add_protocol dslite
  74 }