package/network/ipv6/odhcp6c/files/dhcpv6.script

   1 #!/bin/sh
   2 [ -z "$2" ] && echo "Error: should be run by odhcpc6c" && exit 1
   3 . /lib/functions.sh
   4 . /lib/netifd/netifd-proto.sh
   5
   6 ipv6_conf() {
   7         echo "$3" > "/proc/sys/net/ipv6/conf/$1/$2"
   8 }
   9
  10 # RFC 6204 requires us to block forwarding until address acquisition is complete
  11 ipv6_block_forwarding() {
  12         ip6tables "-$2" forwarding_rule -o "$1" -j REJECT --reject-with no-route 2>/dev/null
  13 }
  14
  15 prepare_interface() {
  16         local device="$1"
  17
  18         ipv6_block_forwarding "$device" A
  19
  20         ipv6_conf "$device" accept_ra 2
  21         ipv6_conf "$device" forwarding 2
  22 }
  23
  24 cleanup_interface() {
  25         local device="$1"
  26         ipv6_conf "$device" accept_ra 1
  27         ipv6_conf "$device" forwarding 1
  28         ipv6_block_forwarding "$device" D
  29 }
  30
  31 setup_interface () {
  32         local device="$1"
  33         ipv6_block_forwarding "$device" D
  34
  35         proto_init_update "*" 1
  36
  37         for dns in $RDNSS; do
  38                 proto_add_dns_server "$dns"
  39         done
  40
  41         for domain in $DOMAINS; do
  42                 proto_add_dns_search "$domain"
  43         done
  44
  45         for prefix in $PREFIXES; do
  46                 proto_add_ipv6_prefix "$prefix"
  47         done
  48
  49         proto_send_update "$INTERFACE"
  50
  51         # TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
  52 }
  53
  54 teardown_interface() {
  55         proto_init_update "*" 0
  56         proto_send_update "$INTERFACE"
  57 }
  58
  59 case "$2" in
  60         started)
  61                 prepare_interface "$1"
  62         ;;
  63         stopped)
  64                 cleanup_interface "$1"
  65         ;;
  66         informed|bound|updated|rebound)
  67                 setup_interface "$1"
  68         ;;
  69         unbound|timeout)
  70                 teardown_interface "$1"
  71         ;;
  72 esac
  73
  74 # user rules
  75 [ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user
  76
  77 exit 0