package/network/ipv6/ipv6-support/files/dhcpv6.sh

   1 #!/bin/sh
   2 # Copyright (c) 2012 OpenWrt.org
   3 . /lib/ipv6/support.sh
   4 . /lib/netifd/netifd-proto.sh
   5
   6 local device="$1"
   7 local state="$2"
   8 local network=""
   9
  10 resolve_network network "$device"
  11
  12 # Unknown network
  13 [ -z "$network" ] && exit 0
  14
  15 if [ "$state" == "started" ]; then
  16         # Start border
  17         set_forward_border "$network" "$device" enable
  18
  19         # Configure device
  20         conf_set "$device" accept_ra 2
  21         conf_set "$device" forwarding 2
  22
  23         # Send RS on interface
  24         [ -x /usr/sbin/6relayd ] && /usr/sbin/6relayd -s "$device"
  25
  26         exit 0
  27 elif [ "$state" == "stopped" ]; then
  28         # Deconfigure device
  29         conf_set "$device" accept_ra 1
  30         conf_set "$device" forwarding 1
  31
  32         # Disable border
  33         set_forward_border "$network" "$device" disable
  34
  35         exit 0
  36 fi
  37
  38 # Announce prefixes
  39 for prefix in $PREFIXES; do
  40         announce_prefix "$prefix" "$network" "$device"
  41 done
  42
  43 for prefix in $PREFIXES_LOST; do
  44         announce_prefix "$prefix" "$network" "$device" delprefix
  45 done
  46
  47
  48 # Enable relaying if requested and we didn't get a prefix, disable otherwise
  49 local fallback="stop"
  50 [ -z "$PREFIXES" -a "$state" != "unbound" ] && fallback="start"
  51 setup_prefix_fallback "$fallback" "$network" "$device"
  52
  53
  54 # Operations in case of success
  55 [ "$state" == "timeout" -o "$state" == "unbound" ] && exit 0
  56
  57 # Handshake completed, disable forwarding border
  58 set_forward_border "$network" "$device" disable
  59
  60 local peerdns
  61 config_get_bool peerdns "$network" peerdns 1
  62 [ "$peerdns" -eq "1" ] && {
  63         proto_init_update "*" 1
  64         proto_set_keep 1
  65         for server in $RDNSS; do
  66                 proto_add_dns_server "$server"
  67         done
  68         for domain in $DOMAINS; do
  69                 proto_add_dns_search "$domain"
  70         done
  71         proto_send_update "$network"
  72 }
  73