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3 - 1 
#!/bin/bash
2 
#
3 
# named           This shell script takes care of starting and stopping
4 
#                 named (BIND DNS server).
5 
#
6 
# chkconfig: - 13 87
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# description: named (BIND) is a Domain Name Server (DNS) \
8 
# that is used to resolve host names to IP addresses.
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# probe: true
10 
 
11 
### BEGIN INIT INFO
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# Provides: $named
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# Required-Start: $local_fs $network $syslog
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# Required-Stop: $local_fs $network $syslog
15 
# Default-Start:
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# Default-Stop: 0 1 2 3 4 5 6
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# Short-Description: start|stop|status|restart|try-restart|reload|force-reload DNS server
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# Description: control ISC BIND implementation of DNS server
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### END INIT INFO
20 
 
21 
# Source function library.
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. /etc/rc.d/init.d/functions
23 
 
24 
[ -r /etc/sysconfig/named ] && . /etc/sysconfig/named
25 
 
26 
RETVAL=0
27 
export KRB5_KTNAME=${KEYTAB_FILE:-/etc/named.keytab}
28 
 
29 
named='named'
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if [ -x /usr/sbin/named-sdb ]; then
31 
	named='named-sdb'
32 
fi
33 
 
34 
# Don't kill named during clean-up
35 
NAMED_SHUTDOWN_TIMEOUT=${NAMED_SHUTDOWN_TIMEOUT:-25}
36 
 
37 
if [ -n "$ROOTDIR" ]; then
38 
   ROOTDIR=`echo $ROOTDIR | sed 's#//*#/#g;s#/$##'`;
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   rdl=`/usr/bin/readlink $ROOTDIR`;
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   if [ -n "$rdl" ]; then
41 
      ROOTDIR="$rdl";
42 
   fi;
43 
fi
44 
 
45 
PIDFILE="/var/run/named/named.pid"
46 
 
47 
ROOTDIR_MOUNT='/etc/named /etc/pki/dnssec-keys /var/named /etc/named.conf
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/etc/named.dnssec.keys /etc/named.rfc1912.zones /etc/rndc.conf /etc/rndc.key
95 - 49 
/usr/lib64/bind /usr/lib/bind /etc/named.iscdlv.key /etc/named.root.key
50 
/etc/services /etc/protocols'
3 - 51 
 
95 - 52 
for LIB in /lib /lib64
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do
54 
  if [ -d "$ROOTDIR$LIB" ]; then
55 
    for NSSLIB in "$LIB"/libnss_files.so.[1-9]
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    do
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      ROOTDIR_MOUNT+=" $NSSLIB"
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    done
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  fi
60 
done
61 
 
3 - 62 
mount_chroot_conf()
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{
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  if [ -n "$ROOTDIR" ]; then
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    for all in $ROOTDIR_MOUNT; do
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      # Skip nonexistant files
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      [ -e "$all" ] || continue
68 
 
69 
      # If mount source is a file
70 
      if ! [ -d "$all" ]; then
71 
        # mount it only if it is not present in chroot or it is empty
95 - 72 
        if ! [ -e "$ROOTDIR$all" ] || [ "`stat -c'%s' "$ROOTDIR$all"`" -eq 0 ]; then
3 - 73 
          touch "$ROOTDIR$all"
74 
          mount --bind "$all" "$ROOTDIR$all"
75 
        fi
76 
      else
77 
        # Mount source is a directory. Mount it only if directory in chroot is
78 
        # empty.
95 - 79 
	if [ -e "$all" ] && [ "`ls -1A "$ROOTDIR$all" | wc -l`" -eq 0 ]; then
3 - 80 
          mount --bind "$all" "$ROOTDIR$all"
81 
	fi
82 
      fi
83 
    done
84 
  fi
85 
}
86 
 
87 
umount_chroot_conf()
88 
{
89 
  if [ -n "$ROOTDIR" ]; then
90 
    for all in $ROOTDIR_MOUNT; do
91 
      # Check if file is mount target. Do not use /proc/mounts because detecting
92 
      # of modified mounted files can fail.
93 
      if mount | grep -q '.* on '"$ROOTDIR$all"' .*'; then
94 
        umount "$ROOTDIR$all"
95 
        # Remove temporary created files
96 
        [ -f "$all" ] && rm -f "$ROOTDIR$all"
97 
      fi
98 
    done
99 
  fi
100 
}
101 
 
8 - 102 
check_pidfile() {
103 
  PID="`pidofproc -p "$ROOTDIR$PIDFILE" "$named"`"
104 
  if [ -n "$PID" ] && [ "`ps -p "$PID" --no-headers -o comm`" != "$named" ]; then
105 
    rm -f $ROOTDIR$PIDFILE &> /dev/null
106 
  fi
107 
}
108 
 
3 - 109 
pidofnamed() {
8 - 110 
	pidofproc -p "$ROOTDIR$PIDFILE" "$named";
3 - 111 
}
112 
 
113 
# Check if all what named needs running
114 
start()
115 
{
116 
  [ "$EUID" != "0" ] && exit 4
117 
 
118 
  # Source networking configuration.
119 
  [ -r /etc/sysconfig/network ] && . /etc/sysconfig/network
120 
 
121 
  # Check that networking is up
122 
  [ "${NETWORKING}" = "no" ] && exit 1
123 
 
124 
 
125 
  [ -x /usr/sbin/"$named" ] || exit 5
126 
 
8 - 127 
  if [ ! -s /etc/rndc.key -a ! -s /etc/rndc.conf ]; then
128 
    # Generate rndc.key if doesn't exist AND there is no rndc.conf
3 - 129 
    echo -n $"Generating /etc/rndc.key:"
8 - 130 
    if /usr/sbin/rndc-confgen -a -r /dev/urandom > /dev/null 2>&1; then
3 - 131 
      chmod 640 /etc/rndc.key
132 
      chown root.named /etc/rndc.key
133 
      [ -x /sbin/restorecon ] && /sbin/restorecon /etc/rndc.key
134 
      success $"/etc/rndc.key generation"
135 
      echo
136 
    else
137 
      failure $"/etc/rndc.key generation"
138 
      echo
139 
    fi
140 
  fi
141 
 
142 
  # Handle -c option
143 
  previous_option='unspecified';
144 
  for a in $OPTIONS; do
145 
    if [ $previous_option = '-c' ]; then
146 
      named_conf=$a;
147 
    fi;
148 
    previous_option=$a;
149 
  done;
150 
 
151 
  named_conf=${named_conf:-/etc/named.conf};
152 
 
8 - 153 
  # check if named is running before mounting files/dirs
154 
  echo -n $"Starting named: "
155 
  check_pidfile
156 
  if [ -n "`pidofnamed`" ]; then
157 
    echo -n $"named: already running"
158 
    success
159 
    echo
160 
    exit 0;
161 
  fi;
162 
 
3 - 163 
  mount_chroot_conf
164 
 
165 
  if [ ! -r $ROOTDIR$named_conf ]; then
166 
    echo 'Cannot find configuration file. You could create it by system-config-bind'
167 
    exit 6;
168 
  fi;
169 
 
170 
  [ -x /sbin/portrelease ] && /sbin/portrelease named &>/dev/null || :
171 
 
172 
  if ! [ "$DISABLE_ZONE_CHECKING" = yes ]; then
173 
    ckcf_options='-z'; # enable named-checkzone for each zone (9.3.1+) !
174 
  fi;
175 
 
176 
  if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
177 
    OPTIONS="${OPTIONS} -t ${ROOTDIR}"
178 
    ckcf_options="$ckcf_options -t ${ROOTDIR}";
179 
    [ -s /etc/localtime ] && cp -fp /etc/localtime ${ROOTDIR}/etc/localtime;
180 
  fi
181 
 
182 
  RETVAL=0
183 
  # check if configuration is correct
184 
  if [ -x /usr/sbin/named-checkconf ] && [ -x /usr/sbin/named-checkzone ] && /usr/sbin/named-checkconf $ckcf_options ${named_conf} >/dev/null 2>&1; then
185 
 
8 - 186 
    daemon --pidfile "$ROOTDIR$PIDFILE" /usr/sbin/"$named" -u named ${OPTIONS};
3 - 187 
    RETVAL=$?
188 
    if [ $RETVAL -eq 0 ]; then
189 
      rm -f /var/run/{named,named-sdb}.pid;
8 - 190 
      ln -s "$ROOTDIR$PIDFILE" /var/run/"$named".pid;
3 - 191 
    fi;
192 
 
193 
  else
194 
    named_err="`/usr/sbin/named-checkconf $ckcf_options $named_conf 2>&1`";
195 
    echo
196 
    echo "Error in named configuration:";
197 
    echo "$named_err";
198 
    failure
199 
    echo
200 
    [ -x /usr/bin/logger ] && echo "$named_err" | /usr/bin/logger -pdaemon.error -tnamed;
201 
    umount_chroot_conf
202 
    exit 2;
203 
  fi;
204 
  echo
205 
  if [ $RETVAL -eq 0 ]; then
206 
    touch /var/lock/subsys/named;
207 
  else
208 
    umount_chroot_conf
209 
    exit 7;
210 
  fi
211 
  return 0;
212 
}
213 
 
214 
stop() {
215 
  [ "$EUID" != "0" ] && exit 4
216 
 
217 
  # Stop daemons.
218 
  echo -n $"Stopping named: "
8 - 219 
  check_pidfile
3 - 220 
  [ -x /usr/sbin/rndc ] && /usr/sbin/rndc stop >/dev/null 2>&1;
221 
  RETVAL=$?
222 
  # was rndc successful?
223 
  [ "$RETVAL" -eq 0 ] || \
8 - 224 
    killproc -p "$ROOTDIR$PIDFILE" "$named" -TERM >/dev/null 2>&1
3 - 225 
 
226 
  timeout=0
227 
  RETVAL=0
228 
  while pidofnamed &>/dev/null; do
229 
    if [ $timeout -ge $NAMED_SHUTDOWN_TIMEOUT ]; then
230 
      RETVAL=1
231 
      break
232 
    else
233 
      sleep 2 && echo -n "."
234 
      timeout=$((timeout+2))
235 
    fi;
236 
  done
237 
 
238 
  umount_chroot_conf
239 
 
240 
  # remove pid files
241 
  if [ $RETVAL -eq 0 ]; then
242 
    rm -f /var/lock/subsys/named
243 
    rm -f /var/run/{named,named-sdb}.pid
244 
  fi;
245 
 
246 
  if [ $RETVAL -eq 0 ]; then
247 
    success
248 
  else
249 
    failure
250 
    RETVAL=1
251 
  fi;
252 
  echo
253 
  return $RETVAL
254 
}
255 
 
256 
 
257 
rhstatus() {
258 
  [ -x /usr/sbin/rndc ] && /usr/sbin/rndc status;
8 - 259 
  check_pidfile
260 
  status -p "$ROOTDIR$PIDFILE" -l named /usr/sbin/"$named";
3 - 261 
  return $?
262 
}
8 - 263 
 
3 - 264 
restart() {
265 
	stop
266 
	start
8 - 267 
}
268 
 
3 - 269 
reload() {
270 
        [ "$EUID" != "0" ] && exit
271 
 
272 
        echo -n $"Reloading "$named": "
8 - 273 
	check_pidfile
3 - 274 
	p=`pidofnamed`
275 
	RETVAL=$?
276 
	if [ "$RETVAL" -eq 0 ]; then
277 
	    /usr/sbin/rndc reload >/dev/null 2>&1 || /bin/kill -HUP $p;
278 
	    RETVAL=$?
279 
        fi
280 
	[ "$RETVAL" -eq 0 ] && success $"$named reload" || failure $"$named reload"
281 
        echo
282 
	return $RETVAL
283 
}
284 
 
285 
checkconfig() {
286 
	ckcf_options='-z';
287 
	if [ -n "${ROOTDIR}" -a "x${ROOTDIR}" != "x/" ]; then
288 
		ckcf_options="$ckcf_options -t ${ROOTDIR}";
8 - 289 
		if ! [ -e "$ROOTDIR/$PIDFILE" ]; then
290 
			mount_chroot_conf
291 
		fi
3 - 292 
	fi;
293 
	if [ -x /usr/sbin/named-checkconf ] && [ -x /usr/sbin/named-checkzone ] && /usr/sbin/named-checkconf $ckcf_options ${named_conf} ; then
8 - 294 
		RETVAL=0
3 - 295 
	else
8 - 296 
		RETVAL=1
297 
	fi
298 
	if ! [ -e "$ROOTDIR/$PIDFILE" ]; then
3 - 299 
		umount_chroot_conf
300 
	fi
8 - 301 
	return $RETVAL
3 - 302 
}
303 
 
304 
# See how we were called.
305 
case "$1" in
306 
	start)
307 
		start
308 
		;;
309 
	stop)
310 
		stop
311 
		;;
312 
	status)
313 
		rhstatus;
314 
		RETVAL=$?
315 
		;;
316 
	restart)
317 
		restart
318 
		;;
319 
	condrestart|try-restart)
320 
		if [ -e /var/lock/subsys/named ]; then restart; fi
321 
                ;;
322 
	reload)
323 
		reload
324 
		;;
325 
	force-reload)
326 
		if ! reload; then restart; fi
327 
		;;
328 
	checkconfig|configtest|check|test)
329 
		checkconfig
8 - 330 
		RETVAL=$?
3 - 331 
		;;
332 
	*)
333 
        	echo $"Usage: $0 {start|stop|status|restart|try-restart|reload|force-reload}"
334 
		[ "x$1" = "x" ] && exit 0
335 
		exit 2
336 
esac
337 
 
338 
exit $RETVAL
339