debian/nfs-common.init

   1 #!/bin/sh
   2
   3 ### BEGIN INIT INFO
   4 # Provides:          nfs-common
   5 # Required-Start:    $time
   6 # Default-Start:     2 3 4 5
   7 # Default-Stop:      0 1 6
   8 # Short-Description: NFS support files common to client and server
   9 # Description:       NFS is a popular protocol for file sharing across
  10 #                    TCP/IP networks. This service provides various
  11 #                    support functions for NFS mounts.
  12 ### END INIT INFO
  13
  14 # What is this?
  15 DESC="NFS common utilities"
  16
  17 # Read config
  18 DEFAULTFILE=/etc/default/nfs-common
  19 PREFIX=
  20 NEED_LOCKD=
  21 NEED_IDMAPD=
  22 IDMAPD_PIDFILE=/var/run/rpc.idmapd.pid
  23 NEED_GSSD=
  24 GSSD_PIDFILE=/var/run/rpc.gssd.pid
  25 PIPEFS_MOUNTPOINT=/var/lib/nfs/rpc_pipefs
  26 RPCGSSDOPTS=
  27 if [ -f $DEFAULTFILE ]; then
  28     . $DEFAULTFILE
  29 fi
  30
  31 . /lib/lsb/init-functions
  32
  33 # Determine whether lockd daemon is required.
  34 case "$NEED_LOCKD" in
  35 yes|no) ;;
  36 *)  case `uname -r` in
  37     '' | [01].* | 2.[0123].* )
  38         # Older kernels may or may not need a lockd daemon.
  39         # We must assume they do, unless we can prove otherwise.
  40         # (A false positive here results only in a harmless message.)
  41         NEED_LOCKD=yes
  42         if test -f /proc/ksyms
  43         then
  44             grep -q lockdctl /proc/ksyms || NEED_LOCKD=no
  45         fi
  46         ;;
  47
  48     *)  # Modern kernels (>= 2.4) start a lockd thread automatically.
  49         NEED_LOCKD=no
  50         ;;
  51     esac
  52     ;;
  53 esac
  54
  55 #
  56 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  57 # /etc/defaults settings, if any, will override our autodetection.) This code
  58 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  59 #
  60 AUTO_NEED_IDMAPD=no
  61 AUTO_NEED_GSSD=no
  62
  63 exec 9<&0 </etc/fstab
  64
  65 while read DEV MTPT FSTYPE OPTS REST
  66 do
  67     if [ "$FSTYPE" = "nfs4" ]; then
  68         AUTO_NEED_IDMAPD=yes
  69     fi
  70     case "$OPTS" in
  71         sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  72             AUTO_NEED_GSSD=yes
  73         ;;
  74     esac
  75 done
  76
  77 exec 0<&9 9<&-
  78
  79 #
  80 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  81 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  82 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  83 # file. This does not mean that there are NFSv4 or other mounts active (or
  84 # even that nfs-kernel-server is installed), but it matches what the "start"
  85 # condition in nfs-kernel-server's init script does, which has a value in
  86 # itself.
  87 #
  88 if [ -f /etc/exports ]; then
  89     AUTO_NEED_IDMAPD=yes
  90 fi
  91
  92
  93 case "$NEED_IDMAPD" in
  94     yes|no)
  95         ;;
  96     *)
  97         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  98         ;;
  99 esac
 100
 101 case "$NEED_GSSD" in
 102     yes|no)
 103         ;;
 104     *)
 105         NEED_GSSD=$AUTO_NEED_GSSD
 106         ;;
 107 esac
 108
 109 # Exit if required binaries are missing.
 110 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
 111 [ -x $PREFIX/sbin/rpc.lockd ] || [ "$NEED_LOCKD"  = no ] || exit 0
 112 [ -x /usr/sbin/rpc.idmapd   ] || [ "$NEED_IDMAPD" = no ] || exit 0
 113 [ -x /usr/sbin/rpc.gssd     ] || [ "$NEED_GSSD"   = no ] || exit 0
 114
 115 do_modprobe() {
 116     modprobe -q "$1" || true
 117 }
 118
 119 do_mount() {
 120     if ! grep -E -qs "$1\$" /proc/filesystems
 121     then
 122         return 1
 123     fi
 124     if ! mountpoint -q "$2"
 125     then
 126         mount -t "$1" "$1" "$2"
 127         return
 128     fi
 129     return 0
 130 }
 131
 132 do_umount() {
 133     if mountpoint -q "$1"
 134     then
 135         umount "$1"
 136     fi
 137     return 0
 138 }
 139
 140 # See how we were called.
 141 case "$1" in
 142   start)
 143         log_daemon_msg "Starting $DESC"
 144
 145         log_progress_msg "statd"
 146         start-stop-daemon --start --oknodo --quiet \
 147             --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 148         if [ $? != 0 ]; then
 149             log_end_msg $?
 150             exit $?
 151         fi
 152
 153         if [ "$NEED_LOCKD" = yes ]
 154         then
 155             log_progress_msg "lockd"
 156             start-stop-daemon --start --oknodo --quiet \
 157                 --exec $PREFIX/sbin/rpc.lockd
 158             if [ $? != 0 ]; then
 159                 log_end_msg $?
 160                 exit $?
 161             fi
 162         fi
 163         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 164         then
 165             do_modprobe nfs
 166             do_modprobe nfs4
 167             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 168             then
 169                 if [ "$NEED_IDMAPD" = yes ]
 170                 then
 171                     log_progress_msg "idmapd"
 172                     start-stop-daemon --start --oknodo --quiet \
 173                             --make-pidfile --pidfile $IDMAPD_PIDFILE \
 174                             --exec /usr/sbin/rpc.idmapd
 175                     if [ $? != 0 ]; then
 176                         log_end_msg $?
 177                         exit $?
 178                     fi
 179                 fi
 180                 if [ "$NEED_GSSD" = yes ]
 181                 then
 182                     do_modprobe rpcsec_gss_krb5
 183                     log_progress_msg "gssd"
 184                     start-stop-daemon --start --oknodo --quiet \
 185                             --make-pidfile --pidfile $GSSD_PIDFILE \
 186                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 187                     if [ $? != 0 ]; then
 188                         log_end_msg $?
 189                         exit $?
 190                     fi
 191                 fi
 192             fi
 193         fi
 194         log_end_msg 0
 195         ;;
 196
 197   stop)
 198         log_daemon_msg "Stopping $DESC"
 199
 200         if [ "$NEED_GSSD" = yes ]
 201         then
 202             log_progress_msg "gssd"
 203             start-stop-daemon --stop --oknodo --quiet \
 204                     --name rpc.gssd
 205             if [ $? != 0 ]; then
 206                 log_end_msg $?
 207                 exit $?
 208             fi
 209             rm -f $GSSD_PIDFILE
 210         fi
 211         if [ "$NEED_IDMAPD" = yes ]
 212         then
 213             log_progress_msg "idmapd"
 214             start-stop-daemon --stop --oknodo --quiet \
 215                 --name rpc.idmapd
 216             if [ $? != 0 ]; then
 217                 log_end_msg $?
 218                 exit $?
 219             fi
 220             rm -f $IDMAPD_PIDFILE
 221         fi
 222         if [ "$NEED_LOCKD" = yes ]
 223         then
 224             log_progress_msg "lockd"
 225             start-stop-daemon --stop --oknodo --quiet \
 226                 --name rpc.lockd
 227             if [ $? != 0 ]; then
 228                 log_end_msg $?
 229                 exit $?
 230             fi
 231         else
 232             pkill -KILL -u root -x lockd || true
 233         fi
 234         log_progress_msg "statd"
 235         start-stop-daemon --stop --oknodo --quiet \
 236             --name rpc.statd
 237         if [ $? != 0 ]; then
 238             log_end_msg $?
 239             exit $?
 240         fi
 241         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 242         log_end_msg 0
 243         ;;
 244
 245   status)
 246         if ! pidof rpc.statd >/dev/null
 247         then
 248             echo "rpc.statd not running"
 249             exit 3
 250         fi
 251
 252         if [ "$NEED_GSSD" = yes ]
 253         then
 254             if [ ! -f "$GSSD_PIDFILE" ] || ! pidof rpc.gssd >/dev/null
 255             then
 256                 echo "rpc.statd running, but rpc.gssd halted"
 257                 exit 3
 258             fi
 259         fi
 260
 261         if [ "$NEED_LOCKD" = yes ]
 262         then
 263             if ! pidof rpc.lockd >/dev/null
 264             then
 265                 echo "rpc.statd running, but rpc.lockd halted"
 266                 exit 3
 267             fi
 268         fi
 269
 270         if [ "$NEED_IDMAPD" = yes ]
 271         then
 272             if [ ! -f "$IDMAPD_PIDFILE" ] || ! pidof rpc.idmapd >/dev/null
 273             then
 274                 echo "rpc.statd running, but rpc.idmapd halted"
 275                 exit 3
 276             fi
 277         fi
 278
 279         echo "rpc.statd running"
 280         exit 0
 281         ;;
 282
 283   restart | force-reload)
 284         $0 stop
 285         sleep 1
 286         $0 start
 287         ;;
 288
 289   *)
 290         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 291         exit 1
 292         ;;
 293 esac
 294
 295 exit 0