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|
#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: named
# REQUIRE: FILESYSTEMS defaultroute ldconfig
# BEFORE: NETWORKING
# KEYWORD: shutdown
. /etc/rc.subr
name=named
rcvar=named_enable
load_rc_config $name
extra_commands=reload
start_precmd=named_prestart
start_postcmd=named_poststart
reload_cmd=named_reload
stop_cmd=named_stop
named_enable=${named_enable:-"NO"} # Run named, the DNS server (or NO).
named_program=${named_program:-"%%PREFIX%%/sbin/named"} # Path to named, if you want a different one.
named_conf=${named_conf:-"%%BIND_DESTETC%%/named.conf"} # Path to the configuration file
named_flags=${named_flags:-""} # Use this for flags OTHER than -u and -c
named_uid=${named_uid:-"bind"} # User to run named as
named_wait=${named_wait:-"NO"} # Wait for working name service before exiting
named_wait_host=${named_wait_host:-"localhost"} # Hostname to check if named_wait is enabled
named_auto_forward=${named_auto_forward:-"NO"} # Set up forwarders from /etc/resolv.conf
named_auto_forward_only=${named_auto_forward_only:-"NO"} # Do "forward only" instead of "forward first"
named_confdir="${named_conf%/*}" # Not a configuration directive but makes rclint happy.
named_poststart()
{
if checkyesno named_wait; then
until ${command%/sbin/named}/bin/host $named_wait_host >/dev/null 2>&1; do
echo " Waiting for nameserver to resolve $named_wait_host"
sleep 1
done
fi
}
named_reload()
{
# This is a one line function, but ${command} is not defined early
# enough to be there when the reload_cmd variable is defined up there.
${command%/named}/rndc reload
}
find_pidfile()
{
if get_pidfile_from_conf pid-file $named_conf; then
pidfile="$_pidfile_from_conf"
else
pidfile="/var/run/named/pid"
fi
}
named_stop()
{
find_pidfile
# This duplicates an undesirably large amount of code from the stop
# routine in rc.subr in order to use rndc to shut down the process,
# and to give it a second chance in case rndc fails.
rc_pid=$(check_pidfile $pidfile $command)
if [ -z "$rc_pid" ]; then
[ -n "$rc_fast" ] && return 0
_run_rc_notrunning
return 1
fi
echo 'Stopping named.'
if ${command%/named}/rndc stop 2>/dev/null; then
wait_for_pids $rc_pid
else
echo -n 'rndc failed, trying kill: '
kill -TERM $rc_pid
wait_for_pids $rc_pid
fi
}
create_file()
{
if [ -e "$1" ]; then
unlink $1
fi
install -o root -g wheel -m 0644 /dev/null $1
}
named_prestart()
{
find_pidfile
if [ -n "$named_pidfile" ]; then
warn 'named_pidfile: now determined from the conf file'
fi
piddir=`/usr/bin/dirname ${pidfile}`
if [ ! -d ${piddir} ]; then
install -d -o ${named_uid} -g ${named_uid} ${piddir}
fi
command_args="-u ${named_uid:=root} -c $named_conf $command_args"
local line nsip firstns
# Create an rndc.key file for the user if none exists
#
confgen_command="${command%/named}/rndc-confgen -a -b256 -u $named_uid \
-c ${named_confdir}/rndc.key"
if [ -s "${named_confdir}/rndc.conf" ]; then
unset confgen_command
fi
if [ -s "${named_confdir}/rndc.key" ]; then
case `stat -f%Su ${named_confdir}/rndc.key` in
root|$named_uid) ;;
*) $confgen_command ;;
esac
else
$confgen_command
fi
local checkconf
checkconf="${command%/named}/named-checkconf"
# Create a forwarder configuration based on /etc/resolv.conf
if checkyesno named_auto_forward; then
if [ ! -s /etc/resolv.conf ]; then
warn "named_auto_forward enabled, but no /etc/resolv.conf"
# Empty the file in case it is included in named.conf
[ -s "${named_confdir}/auto_forward.conf" ] &&
create_file ${named_confdir}/auto_forward.conf
$checkconf $named_conf ||
err 3 'named-checkconf for $named_conf failed'
return
fi
create_file /var/run/naf-resolv.conf
create_file /var/run/auto_forward.conf
echo ' forwarders {' > /var/run/auto_forward.conf
while read line; do
case "$line" in
'nameserver '*|'nameserver '*)
nsip=${line##nameserver[ ]}
if [ -z "$firstns" ]; then
if [ ! "$nsip" = '127.0.0.1' ]; then
echo 'nameserver 127.0.0.1'
echo " ${nsip};" >> /var/run/auto_forward.conf
fi
firstns=1
else
[ "$nsip" = '127.0.0.1' ] && continue
echo " ${nsip};" >> /var/run/auto_forward.conf
fi
;;
esac
echo $line
done < /etc/resolv.conf > /var/run/naf-resolv.conf
echo ' };' >> /var/run/auto_forward.conf
echo '' >> /var/run/auto_forward.conf
if checkyesno named_auto_forward_only; then
echo " forward only;" >> /var/run/auto_forward.conf
else
echo " forward first;" >> /var/run/auto_forward.conf
fi
if cmp -s /etc/resolv.conf /var/run/naf-resolv.conf; then
unlink /var/run/naf-resolv.conf
else
[ -e /etc/resolv.conf ] && unlink /etc/resolv.conf
mv /var/run/naf-resolv.conf /etc/resolv.conf
fi
if cmp -s ${named_confdir}/auto_forward.conf \
/var/run/auto_forward.conf; then
unlink /var/run/auto_forward.conf
else
[ -e "${named_confdir}/auto_forward.conf" ] &&
unlink ${named_confdir}/auto_forward.conf
mv /var/run/auto_forward.conf \
${named_confdir}/auto_forward.conf
fi
else
# Empty the file in case it is included in named.conf
[ -s "${named_confdir}/auto_forward.conf" ] &&
create_file ${named_confdir}/auto_forward.conf
fi
$checkconf $named_conf || err 3 'named-checkconf for $named_conf failed'
}
run_rc_command "$1"
|
