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Text File  |  2009-02-09  |  10KB  |  344 lines
  1. #! /bin/sh
  2. # Copyright (c) 1995-2004 SUSE Linux AG, Nuernberg, Germany
  3. # All rights reserved.
  4. #
  5. # Author: Lars Mueller <lmuelle@suse.de>
  6. #
  7. # /etc/init.d/named
  8. #   and its symbolic link
  9. # /usr/sbin/rcnamed
  10. #
  11. #    This program is free software; you can redistribute it and/or modify 
  12. #    it under the terms of the GNU General Public License as published by 
  13. #    the Free Software Foundation; either version 2 of the License, or 
  14. #    (at your option) any later version. 
  15. # 
  16. #    This program is distributed in the hope that it will be useful, 
  17. #    but WITHOUT ANY WARRANTY; without even the implied warranty of 
  18. #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  19. #    GNU General Public License for more details. 
  20. # 
  21. #    You should have received a copy of the GNU General Public License 
  22. #    along with this program; if not, write to the Free Software 
  23. #    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24. #
  25. ### BEGIN INIT INFO
  26. # Provides:          named
  27. # Required-Start:    $network $remote_fs $syslog
  28. # Required-Stop:     $network $remote_fs $syslog
  29. # Should-Start:      ldap
  30. # Default-Start:     3 5
  31. # Default-Stop:      0 1 2 6
  32. # Short-Description: Domain Name System (DNS) server, named
  33. # Description:       Berkeley Internet Name Domain (BIND) implementation of the
  34. #    Domain Name System (DNS) server named.
  35. ### END INIT INFO
  36.  
  37. . /etc/rc.status
  38. rc_reset
  39.  
  40. PATH="/sbin:/usr/sbin:/bin:/usr/bin:/bsc/services/named/sbin:/bsc/services/named/bin"
  41. SSCONFIG_FILE="/bsc/siteConfiguration/named.variables"
  42. NAMED_CONF="/bsc/siteConfiguration/named.conf"
  43.  
  44. if [ "$1" != "stop" ]; then
  45.     for configfile in ${SYSCONFIG_FILE} ${NAMED_CONF}; do
  46.         if [ ! -f ${configfile} ]; then
  47.             echo -n "Name server configuration file ${configfile} does not exist. "
  48.             # Tell the user this has skipped
  49.             rc_status -s
  50.             exit 6
  51.         fi
  52.     done
  53.     . $SSCONFIG_FILE
  54.     # Ensure to work always with absolut filenames.
  55.     temp_file_list=""
  56.     for configfile in ${NAMED_CONF_INCLUDE_FILES}; do
  57.         # prepend the default include directory if the filename is
  58.         # relative
  59.         test "${configfile:0:1}" = "/" || configfile="/etc/named.d/${configfile}"
  60.         temp_file_list="${temp_file_list} ${configfile}"
  61.     done
  62.     NAMED_CONF_INCLUDE_FILES=${temp_file_list}
  63.     # Add include files from named.conf.
  64.     NAMED_CONF_INCLUDE_LINES=$( grep -e '^[[:space:]]*include' "${NAMED_CONF}" | cut -f 2 -d '"')
  65.     for file in ${NAMED_CONF_INCLUDE_LINES}; do
  66.         test "${file}" = "${NAMED_CONF_META_INCLUDE_FILE}" && continue
  67.         case "${NAMED_CONF_INCLUDE_FILES}" in
  68.             *${file}*) ;;
  69.             *) NAMED_CONF_INCLUDE_FILES="${NAMED_CONF_INCLUDE_FILES} ${file}" ;;
  70.         esac
  71.     done
  72. fi
  73.  
  74. if [ "${NAMED_RUN_CHROOTED}" = "yes" ]; then
  75.     CHROOT_PREFIX="/var/lib/named"
  76.     NAMED_ARGS="${NAMED_ARGS} -t ${CHROOT_PREFIX}"
  77.     NAMED_CHECKCONF_ARGS="-t ${CHROOT_PREFIX}"
  78. else
  79.     CHROOT_PREFIX=""
  80. fi
  81.  
  82. NAMED_BIN="/bsc/services/named/sbin/named"
  83. NAMED_CHECKCONF_BIN="/bsc/services/named/sbin/named-checkconf"
  84. NAMED_CONF_META_INCLUDE_FILE_SCRIPT="/bsc/services/named/bin/createNamedConfInclude"
  85. NAMED_PID="${CHROOT_PREFIX}/var/run/named/named.pid"
  86. RNDC_BIN="/bsc/services/named/sbin/rndc"
  87. NAMED_CONF_INCLUDE_FILE="/bsc/siteConfiguration/named.conf.include"
  88.  
  89. if [ ! -x ${NAMED_BIN} -a "$1" != "stop" ] ; then
  90.     echo -n "Name server, ${NAMED_BIN} not installed! "
  91.     # Tell the user this has skipped
  92.     rc_status -s
  93.     exit 5
  94. fi
  95.  
  96. # Check for NAMED_CONF_META_INCLUDE_FILE or set it to our default if we use
  97. # the NAMED_CONF_META_INCLUDE_FILE_SCRIPT script.
  98. #if [ -z "${NAMED_CONF_META_INCLUDE_FILE}" ]; then
  99. #    BASENAME_NAMED_CONF_META_INCLUDE_FILE_SCRIPT=$( basename ${NAMED_CONF_META_INCLUDE_FILE_SCRIPT})
  100. #    for script in ${NAMED_INITIALIZE_SCRIPTS}; do
  101. #        if [ "${script}" = "${BASENAME_NAMED_CONF_META_INCLUDE_FILE_SCRIPT}" -o \
  102. #        "${script}" = "${NAMED_CONF_META_INCLUDE_FILE_SCRIPT}" ]; then
  103. #            NAMED_CONF_META_INCLUDE_FILE=$NAMED_CONF_INCLUDE_FILE
  104. #            break
  105. #        fi
  106. #    done
  107. #fi
  108.  
  109. function warnMessage()
  110. {
  111.     tput bold
  112.     echo -en "\nWarning: "
  113.     tput sgr0
  114.     echo -e "$1 "
  115. }
  116.  
  117. function initializeNamed
  118. {
  119.     rc=0
  120. #    test "${initializeNamedCalled}" = "yes" && return
  121. #    for script in ${NAMED_INITIALIZE_SCRIPTS}; do
  122. #        test "${script:0:1}" = "/" || script="/usr/share/bind/${script}"
  123. #        ${script}
  124. #        test $? -ne 0 && rc=$?
  125. #    done
  126.     # We want to start each script one time only
  127. #    export initializeNamedCalled="yes"
  128.     return ${rc}
  129. }
  130.  
  131. # Create destination directory in the chroot.
  132. function makeDestDir
  133. {
  134.     if [ ! -d "${CHROOT_PREFIX}/${configfile%/*}" ]; then
  135.         umask 0022
  136.         mkdir -p "${CHROOT_PREFIX}/${configfile%/*}"
  137.     fi
  138. }
  139.  
  140. # Check if all needed configuration files exist and copy these files relativly
  141. # to the chroot directory if 'named' runs chrooted.
  142. function checkAndCopyConfigFiles
  143. {
  144.     test "${checkAndCopyConfigFilesCalled}" = "yes" && return
  145.     # check for /etc/rndc.key
  146.     if [ ! -f /etc/rndc.key ]; then
  147.         warnMessage "File /etc/rndc.key not found. Creating it."
  148.         /usr/sbin/rndc-confgen -a -b 512 -r /dev/urandom
  149.         chmod 0640 /etc/rndc.key
  150.         chown root:named /etc/rndc.key
  151.     fi
  152.     # Handle all include files.
  153.     #for configfile in "${NAMED_CONF_META_INCLUDE_FILE}" ${NAMED_CONF_INCLUDE_FILES}; do
  154.     for configfile in ${NAMED_CONF_INCLUDE_FILES}; do
  155.         if [ ! -f "${configfile}" ]; then
  156.             case "${configfile}" in
  157.                 "${NAMED_CONF_META_INCLUDE_FILE}")
  158.                     warnMessage "File, ${configfile} not found.  Creating it."
  159.                     initializeNamed
  160.                     ;;
  161.                 *)
  162.                     test -z "${NAMED_CONF_META_INCLUDE_FILE}" && continue
  163.                     grep -qe "^[[:space:]]*include[[:space:]]*\"${configfile}\"" "${NAMED_CONF_META_INCLUDE_FILE}" && \
  164.                         initializeNamed || \
  165.                         warnMessage "File, ${configfile} not found.  1Skipping.\nPlease check the setting of NAMED_CONF_INCLUDE_FILES in /etc/sysconfig/named."
  166.                     continue
  167.                     ;;
  168.             esac
  169.         fi
  170.         if [ "${NAMED_RUN_CHROOTED}" = "yes" ]; then
  171.             makeDestDir
  172.             rm -f ${CHROOT_PREFIX}/${configfile}
  173.             cp -a -L ${configfile} ${CHROOT_PREFIX}/${configfile%/*}
  174.         fi
  175.     done
  176.     # Handle known configuration files.
  177.     if [ "${NAMED_RUN_CHROOTED}" = "yes" ]; then
  178.         for configfile in ${NAMED_CONF} /etc/{localtime,rndc.key}; do
  179.             if [ ! -e ${configfile} ]; then
  180.                 warnMessage "File ${configfile} not found. 2Skipping."
  181.                 continue
  182.             fi
  183.             makeDestDir
  184.             rm -f ${CHROOT_PREFIX}/${configfile}
  185.  
  186.             cp -a -L ${configfile} ${CHROOT_PREFIX}/${configfile%/*}
  187.         done
  188.     fi
  189.  
  190.     # This is a Bradford specific change, related to the special directory
  191.     # structure that Bradford uses and the inflexible way that named-checkconf
  192.     # performs its checks.
  193.     (cd ${CHROOT_PREFIX}/etc ; ln -fs ../bsc/siteConfiguration/named.conf .)
  194.     (cd ${CHROOT_PREFIX}/etc ; ln -fs ../bsc/siteConfiguration/named.conf.include .)
  195.     # END of Bradford specific change
  196.  
  197.     export checkAndCopyConfigFilesCalled="yes"
  198. }
  199.  
  200. # Check the syntax of our 'named' configuration.
  201. function namedCheckConf
  202. {
  203.     test "${namedConfChecked}" = "yes" && return
  204.     if ! ${NAMED_CHECKCONF_BIN} ${NAMED_CHECKCONF_ARGS} >/dev/null; then
  205.         checkAndCopyConfigFiles
  206.         if ! ${NAMED_CHECKCONF_BIN} ${NAMED_CHECKCONF_ARGS}; then
  207.             rc_status -s
  208.             rc_failed 6
  209.             rc_exit
  210.         fi
  211.     fi
  212.     export namedConfChecked="yes"
  213. }
  214.  
  215. case "$1" in
  216.     start)
  217.     echo -n "Starting name server BIND "
  218.     . $SSCONFIG_FILE
  219.     checkproc -p ${NAMED_PID} ${NAMED_BIN}
  220.     case $? in
  221.         0) echo -n "- Warning: named already running! " ;;
  222.         1) echo -n "- Warning: ${NAMED_PID} exists! " ;;
  223.     esac
  224.     checkAndCopyConfigFiles
  225.  
  226.     # 6-feb-209 kclark@bradford
  227.     # Hack to deal with the new kernel
  228.     /sbin/modprobe capability
  229.  
  230.     namedCheckConf
  231.     initializeNamed
  232.     startproc -p ${NAMED_PID} ${NAMED_BIN} ${NAMED_ARGS} -u named
  233. #    startproc -p ${NAMED_PID} ${NAMED_BIN} ${NAMED_ARGS} 
  234.     rc_status -v
  235.     ;;
  236.     stop)
  237.     echo -n "Shutting down name server BIND "
  238.     checkproc -p ${NAMED_PID} ${NAMED_BIN} || echo -n "- Warning: named not running! "
  239.     if ${RNDC_BIN} status &>/dev/null; then
  240.         ${RNDC_BIN} stop
  241.     else
  242.         killproc -p ${NAMED_PID} -TERM ${NAMED_BIN}
  243.     fi
  244.     rc=$?
  245.  
  246.     # let's wait, because
  247.     # 1) trying to start named before it has terminated can leave
  248.     #    us without a running named...
  249.     # 2) making sure that pending updates are written to zone files is good
  250.     #    before trying to modify them externally
  251.     info="no"; timeout=30; rc=0; startDate=$( date +%s)
  252.     while [ ${rc} -eq 0 ]; do
  253.         checkproc -p ${NAMED_PID} ${NAMED_BIN}
  254.         rc=$?
  255.         if [ ${rc} -ne 0 ]; then
  256.             test "${info}" = "yes" && rc_timer_off
  257.             break
  258.         elif [ ${info} = "no" ]; then
  259.             echo -n >&2 " waiting for named to shut down "
  260.             rc_timer_on ${timeout} 63
  261.             info="yes"
  262.         fi
  263.         if [ $(( $( date +%s) - ${startDate} )) -gt $timeout ]; then
  264.             echo -en >&2 "\nNamed still appears to be running after $timeout seconds, sending SIGTERM"
  265.             rc=1
  266.             killproc -p ${NAMED_PID} -TERM ${NAMED_BIN}
  267.         else
  268.             sleep 2
  269.         fi
  270.     done
  271.  
  272.     rc_status -v
  273.     ;;
  274.     try-restart|condrestart)
  275.     if test "$1" = "condrestart"; then
  276.         echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
  277.     fi
  278.     namedCheckConf
  279.     $0 status
  280.     if test $? = 0; then
  281.         $0 restart
  282.     else
  283.         rc_reset
  284.     fi
  285.     rc_status
  286.     ;;
  287.     restart)
  288.     namedCheckConf
  289.     # Some of the scripts need a running named.
  290.     $0 status >/dev/null && initializeNamed
  291.     $0 stop
  292.     $0 start
  293.     rc_status
  294.     ;;
  295.     force-reload|reload)
  296.     echo -n "Reloading name server BIND "
  297.     checkproc -p ${NAMED_PID} ${NAMED_BIN} || echo "- Warning: named not running! "
  298.     rc=$?
  299.     if [ ${rc} -ne 0 ]; then
  300.         echo "- Warning: named not running! "
  301.     else
  302.         checkAndCopyConfigFiles
  303.         namedCheckConf
  304.         initializeNamed
  305.         ${RNDC_BIN} status &>/dev/null
  306.         if [ $? -ne 0 ]; then
  307.             killproc -p ${NAMED_PID} -HUP ${NAMED_BIN}
  308.         else
  309.             ${RNDC_BIN} reload
  310.         fi
  311.         rc=$?
  312.     fi
  313.     ( exit ${rc} )
  314.     rc_status -v
  315.     ;;
  316.     status)
  317.     echo -n "Checking for nameserver BIND "
  318.     checkproc -p ${NAMED_PID} ${NAMED_BIN}
  319.     if [ $? -ne 0 ]; then
  320.         false    
  321.     else
  322.         test "${RNDC_BIN}" && echo && ${RNDC_BIN} status && echo -en "${esc}[1A"
  323.         true
  324.     fi
  325.     rc_status -v
  326.     ;;
  327.     probe)
  328.     rc=0
  329.     for configfile in ${NAMED_CONF} /etc/{localtime,rndc.key} "${NAMED_CONF_META_INCLUDE_FILE}" ${NAMED_CONF_INCLUDE_FILES}; do
  330.         if [ "${configfile}" -nt ${NAMED_PID} ]; then
  331.             rc=1
  332.             break
  333.         fi
  334.     done
  335.     test ${rc} -ne 0 && echo reload
  336.     ;;
  337.     *)
  338.     echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
  339.     exit 1
  340.     ;;
  341. esac
  342. rc_exit
  343.  
  344.