etc/rc.d/local_unbound

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5
   6 # PROVIDE: local_unbound
   7 # REQUIRE: FILESYSTEMS netif resolv
   8 # BEFORE: NETWORKING
   9 # KEYWORD: shutdown
  10
  11 . /etc/rc.subr
  12
  13 name="local_unbound"
  14 desc="local caching forwarding resolver"
  15 rcvar="local_unbound_enable"
  16
  17 command="/usr/sbin/unbound"
  18 extra_commands="anchor configtest reload setup"
  19 start_precmd="local_unbound_prestart"
  20 start_postcmd="local_unbound_poststart"
  21 reload_precmd="local_unbound_configtest"
  22 anchor_cmd="local_unbound_anchor"
  23 configtest_cmd="local_unbound_configtest"
  24 setup_cmd="local_unbound_setup"
  25 pidfile="/var/run/${name}.pid"
  26
  27 load_rc_config $name
  28
  29 : ${local_unbound_workdir:=/var/unbound}
  30 : ${local_unbound_config:=${local_unbound_workdir}/unbound.conf}
  31 : ${local_unbound_flags:="-c ${local_unbound_config}"}
  32 : ${local_unbound_forwardconf:=${local_unbound_workdir}/forward.conf}
  33 : ${local_unbound_anchor:=${local_unbound_workdir}/root.key}
  34 : ${local_unbound_forwarders:=}
  35
  36 do_as_unbound()
  37 {
  38         echo "$@" | su -m unbound
  39 }
  40
  41 #
  42 # Retrieve or update the DNSSEC root anchor
  43 #
  44 local_unbound_anchor()
  45 {
  46         do_as_unbound /usr/sbin/unbound-anchor -a ${local_unbound_anchor}
  47         # we can't trust the exit code - check if the file exists
  48         [ -f ${local_unbound_anchor} ]
  49 }
  50
  51 #
  52 # Check the unbound configuration file
  53 #
  54 local_unbound_configtest()
  55 {
  56         do_as_unbound /usr/sbin/unbound-checkconf ${local_unbound_config}
  57 }
  58
  59 #
  60 # Create the unbound configuration file and update resolv.conf to
  61 # point to unbound.
  62 #
  63 local_unbound_setup()
  64 {
  65         echo "Performing initial setup."
  66         /usr/sbin/local-unbound-setup -n \
  67             -u unbound \
  68             -w ${local_unbound_workdir} \
  69             -c ${local_unbound_config} \
  70             -f ${local_unbound_forwardconf} \
  71             -a ${local_unbound_anchor} \
  72             ${local_unbound_forwarders}
  73 }
  74
  75 #
  76 # Before starting, check that the configuration file and root anchor
  77 # exist.  If not, attempt to generate them.
  78 #
  79 local_unbound_prestart()
  80 {
  81         # Create configuration file
  82         if [ ! -f ${local_unbound_config} ] ; then
  83                 run_rc_command setup
  84         fi
  85
  86         # Retrieve DNSSEC root key
  87         if [ ! -f ${local_unbound_anchor} ] ; then
  88                 run_rc_command anchor
  89         fi
  90 }
  91
  92 #
  93 # After starting, wait for Unbound to report that it is ready to avoid
  94 # race conditions with services which require functioning DNS.
  95 #
  96 local_unbound_poststart()
  97 {
  98         local retry=5
  99
 100         echo -n "Waiting for nameserver to start..."
 101         until "${command}-control" status | grep -q "is running" ; do
 102                 if [ $((retry -= 1)) -eq 0 ] ; then
 103                         echo " giving up"
 104                         return 1
 105                 fi
 106                 echo -n "."
 107                 sleep 1
 108         done
 109         echo " good"
 110 }
 111
 112 load_rc_config $name
 113 run_rc_command "$1"