etc/rc.d/named

   1 #!/bin/sh
   2 #
   3 # $NetBSD: named,v 1.21 2009/04/25 15:46:19 christos Exp $
   4 #
   5
   6 # PROVIDE: named
   7 # REQUIRE: NETWORKING mountcritremote syslogd
   8 # BEFORE:  DAEMON
   9 # KEYWORD: chrootdir
  10
  11 $_rc_subr_loaded . /etc/rc.subr
  12
  13 name="named"
  14 rcvar=$name
  15 command="/usr/sbin/${name}"
  16 pidfile="/var/run/${name}/${name}.pid"
  17 start_precmd="named_precmd"
  18 extra_commands="reload"
  19 required_dirs="$named_chrootdir"        # if it is set, it must exist
  20
  21 named_migrate()
  22 {
  23         local src=$1
  24         local dst=$2$1
  25         echo "Migrating $src to $dst"
  26 (
  27         diff=false
  28         cd $src
  29         for f in $(find . -type f)
  30         do
  31                 f=${f##./}
  32                 case $f in
  33                 */*)
  34                         d=$dst/$(dirname $f)
  35                         ;;
  36                 *)      d=$dst
  37                         ;;
  38                 esac
  39                 mkdir -p $d
  40                 if [ -r "$dst/$f" ]
  41                 then
  42                         if ! cmp $f $dst/$f; then
  43                                 diff=true
  44                         fi
  45                 else
  46                         cp -p $f $dst/$f
  47                 fi
  48         done
  49         if $diff; then
  50                 echo "Cannot complete migration because files are different"
  51                 echo "Run 'diff -r $src $dst' resolve the differences"
  52         else
  53                 rm -fr $src
  54                 ln -s $dst $src
  55         fi
  56 )
  57 }
  58
  59 named_precmd()
  60 {
  61         if [ -z "$named_chrootdir" ]; then
  62                 return 0;
  63         fi
  64
  65         # If running in a chroot cage, ensure that the appropriate files
  66         # exist inside the cage, as well as helper symlinks into the cage
  67         # from outside.
  68         #
  69         # As this is called after the is_running and required_dir checks
  70         # are made in run_rc_command(), we can safely assume ${named_chrootdir}
  71         # exists and named isn't running at this point (unless forcestart
  72         # is used).
  73         #
  74         case "$($command -v)" in
  75         BIND*)  # 9 no group, named-xfer, or ndc
  76                 ;;
  77         named*) # 4 and 8
  78                 rc_flags="-g named $rc_flags"
  79                 if [ ! -x "${named_chrootdir}/usr/libexec/named-xfer" -o \
  80                     "${named_chrootdir}/usr/libexec/named-xfer" -ot \
  81                     /usr/libexec/named-xfer ]; then
  82                         rm -f "${named_chrootdir}/usr/libexec/named-xfer"
  83                         cp -p /usr/libexec/named-xfer \
  84                             "${named_chrootdir}/usr/libexec"
  85                 fi
  86                 ln -fs "${named_chrootdir}/var/run/ndc" /var/run/ndc
  87                 ;;
  88         esac
  89
  90         for i in null random
  91         do
  92                 if [ ! -c "${named_chrootdir}/dev/$i" ]; then
  93                         rm -f "${named_chrootdir}/dev/$i"
  94                         (cd /dev &&
  95                             /bin/pax -rw -pe "$i" "${named_chrootdir}/dev")
  96                 fi
  97         done
  98
  99         if [ ! -h /etc/namedb ]; then
 100                 named_migrate /etc/namedb ${named_chrootdir}
 101         fi
 102         if [ \( -r /etc/named.conf \) -a \( ! -h /etc/named.conf \) -a \
 103              \( ! -r ${named_chrootdir}/etc/named.conf \) ]
 104         then
 105                 mv /etc/named.conf ${named_chrootdir}/etc/named.conf
 106                 ln -s ${named_chrootdir}/etc/named.conf /etc/named.conf
 107         fi
 108         if [ \( ! -r ${named_chrootdir}/etc/named.conf \) -a \
 109             \( -r ${named_chrootdir}/etc/namedb/named.conf \) ]; then
 110                 ln -s namedb/named.conf ${named_chrootdir}/etc
 111         fi
 112
 113         if [ -f /etc/localtime ]; then
 114                 cmp -s /etc/localtime "${named_chrootdir}/etc/localtime" || \
 115                     cp -p /etc/localtime "${named_chrootdir}/etc/localtime"
 116         fi
 117
 118         local piddir="$(dirname "${pidfile}")"
 119         mkdir -p "${named_chrootdir}${piddir}" "${piddir}"
 120         chmod 755 "${named_chrootdir}${piddir}" "${piddir}"
 121         chown named:named "${named_chrootdir}${piddir}" "${piddir}"
 122         ln -fs "${named_chrootdir}${pidfile}" "${pidfile}"
 123
 124         #       Change run_rc_commands()'s internal copy of $named_flags
 125         #
 126         rc_flags="-u named -t ${named_chrootdir} $rc_flags"
 127 }
 128
 129 load_rc_config $name
 130 run_rc_command "$1"