debian/nfs-common.init

   1 #!/bin/sh
   2
   3 ### BEGIN INIT INFO
   4 # Provides:          nfs-common
   5 # Required-Start:    $time
   6 # Required-Stop:     $time
   7 # Default-Start:     2 3 4 5
   8 # Default-Stop:      0 1 6
   9 # Short-Description: NFS support files common to client and server
  10 # Description:       NFS is a popular protocol for file sharing across
  11 #                    TCP/IP networks. This service provides various
  12 #                    support functions for NFS mounts.
  13 ### END INIT INFO
  14
  15 # What is this?
  16 DESC="NFS common utilities"
  17
  18 # Read config
  19 DEFAULTFILE=/etc/default/nfs-common
  20 PREFIX=
  21 NEED_LOCKD=
  22 NEED_IDMAPD=
  23 NEED_GSSD=
  24 PIPEFS_MOUNTPOINT=/var/lib/nfs/rpc_pipefs
  25 RPCGSSDOPTS=
  26 if [ -f $DEFAULTFILE ]; then
  27     . $DEFAULTFILE
  28 fi
  29
  30 . /lib/lsb/init-functions
  31
  32 # Determine whether lockd daemon is required.
  33 case "$NEED_LOCKD" in
  34 yes|no) ;;
  35 *)  case `uname -r` in
  36     '' | [01].* | 2.[0123].* )
  37         # Older kernels may or may not need a lockd daemon.
  38         # We must assume they do, unless we can prove otherwise.
  39         # (A false positive here results only in a harmless message.)
  40         NEED_LOCKD=yes
  41         if test -f /proc/ksyms
  42         then
  43             grep -q lockdctl /proc/ksyms || NEED_LOCKD=no
  44         fi
  45         ;;
  46
  47     *)  # Modern kernels (>= 2.4) start a lockd thread automatically.
  48         NEED_LOCKD=no
  49         ;;
  50     esac
  51     ;;
  52 esac
  53
  54 #
  55 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  56 # /etc/defaults settings, if any, will override our autodetection.) This code
  57 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  58 #
  59 AUTO_NEED_IDMAPD=no
  60 AUTO_NEED_GSSD=no
  61
  62 exec 9<&0 </etc/fstab
  63
  64 while read DEV MTPT FSTYPE OPTS REST
  65 do
  66     if [ "$FSTYPE" = "nfs4" ]; then
  67         AUTO_NEED_IDMAPD=yes
  68     fi
  69     case "$OPTS" in
  70         sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  71             AUTO_NEED_GSSD=yes
  72         ;;
  73     esac
  74 done
  75
  76 exec 0<&9 9<&-
  77
  78 #
  79 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  80 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  81 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  82 # file. This does not mean that there are NFSv4 or other mounts active (or
  83 # even that nfs-kernel-server is installed), but it matches what the "start"
  84 # condition in nfs-kernel-server's init script does, which has a value in
  85 # itself.
  86 #
  87 if [ -f /etc/exports ]; then
  88     AUTO_NEED_IDMAPD=yes
  89 fi
  90
  91
  92 case "$NEED_IDMAPD" in
  93     yes|no)
  94         ;;
  95     *)
  96         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  97         ;;
  98 esac
  99
 100 case "$NEED_GSSD" in
 101     yes|no)
 102         ;;
 103     *)
 104         NEED_GSSD=$AUTO_NEED_GSSD
 105         ;;
 106 esac
 107
 108 # Exit if required binaries are missing.
 109 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
 110 [ -x $PREFIX/sbin/rpc.lockd ] || [ "$NEED_LOCKD"  = no ] || exit 0
 111 [ -x /usr/sbin/rpc.idmapd   ] || [ "$NEED_IDMAPD" = no ] || exit 0
 112 [ -x /usr/sbin/rpc.gssd     ] || [ "$NEED_GSSD"   = no ] || exit 0
 113
 114 do_modprobe() {
 115     modprobe -q "$1" || true
 116 }
 117
 118 do_mount() {
 119     if ! grep -E -qs "$1\$" /proc/filesystems
 120     then
 121         return 1
 122     fi
 123     if ! mountpoint -q "$2"
 124     then
 125         mount -t "$1" "$1" "$2"
 126         return
 127     fi
 128     return 0
 129 }
 130
 131 do_umount() {
 132     if mountpoint -q "$1"
 133     then
 134         umount "$1"
 135     fi
 136     return 0
 137 }
 138
 139 # See how we were called.
 140 case "$1" in
 141   start)
 142         log_daemon_msg "Starting $DESC"
 143
 144         log_progress_msg "statd"
 145         start-stop-daemon --start --oknodo --quiet \
 146             --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 147         if [ $? != 0 ]; then
 148             log_end_msg $?
 149             exit $?
 150         fi
 151
 152         if [ "$NEED_LOCKD" = yes ]
 153         then
 154             log_progress_msg "lockd"
 155             start-stop-daemon --start --oknodo --quiet \
 156                 --exec $PREFIX/sbin/rpc.lockd
 157             if [ $? != 0 ]; then
 158                 log_end_msg $?
 159                 exit $?
 160             fi
 161         fi
 162         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 163         then
 164             do_modprobe nfs
 165             do_modprobe nfs4
 166             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 167             then
 168                 if [ "$NEED_IDMAPD" = yes ]
 169                 then
 170                     log_progress_msg "idmapd"
 171                     start-stop-daemon --start --oknodo --quiet \
 172                             --exec /usr/sbin/rpc.idmapd
 173                     if [ $? != 0 ]; then
 174                         log_end_msg $?
 175                         exit $?
 176                     fi
 177                 fi
 178                 if [ "$NEED_GSSD" = yes ]
 179                 then
 180                     do_modprobe rpcsec_gss_krb5
 181                     log_progress_msg "gssd"
 182
 183                     # we need this available; better to fail now than
 184                     # mysteriously on the first mount
 185                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 186                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 187                         exit 1
 188                     fi
 189
 190                     start-stop-daemon --start --oknodo --quiet \
 191                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 192                     if [ $? != 0 ]; then
 193                         log_end_msg $?
 194                         exit $?
 195                     fi
 196                 fi
 197             fi
 198         fi
 199         log_end_msg 0
 200         ;;
 201
 202   stop)
 203         log_daemon_msg "Stopping $DESC"
 204
 205         if [ "$NEED_GSSD" = yes ]
 206         then
 207             log_progress_msg "gssd"
 208             start-stop-daemon --stop --oknodo --quiet \
 209                     --name rpc.gssd
 210             if [ $? != 0 ]; then
 211                 log_end_msg $?
 212                 exit $?
 213             fi
 214         fi
 215         if [ "$NEED_IDMAPD" = yes ]
 216         then
 217             log_progress_msg "idmapd"
 218             start-stop-daemon --stop --oknodo --quiet \
 219                 --name rpc.idmapd
 220             if [ $? != 0 ]; then
 221                 log_end_msg $?
 222                 exit $?
 223             fi
 224         fi
 225         if [ "$NEED_LOCKD" = yes ]
 226         then
 227             log_progress_msg "lockd"
 228             start-stop-daemon --stop --oknodo --quiet \
 229                 --name rpc.lockd
 230             if [ $? != 0 ]; then
 231                 log_end_msg $?
 232                 exit $?
 233             fi
 234         else
 235             pkill -KILL -u root -x lockd || true
 236         fi
 237         log_progress_msg "statd"
 238         start-stop-daemon --stop --oknodo --quiet \
 239             --name rpc.statd
 240         if [ $? != 0 ]; then
 241             log_end_msg $?
 242             exit $?
 243         fi
 244         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 245         log_end_msg 0
 246         ;;
 247
 248   status)
 249         if ! pidof rpc.statd >/dev/null
 250         then
 251             echo "rpc.statd not running"
 252             exit 3
 253         fi
 254
 255         if [ "$NEED_GSSD" = yes ]
 256         then
 257             if ! pidof rpc.gssd >/dev/null
 258             then
 259                 echo "rpc.statd running, but rpc.gssd halted"
 260                 exit 3
 261             fi
 262         fi
 263
 264         if [ "$NEED_LOCKD" = yes ]
 265         then
 266             if ! pidof rpc.lockd >/dev/null
 267             then
 268                 echo "rpc.statd running, but rpc.lockd halted"
 269                 exit 3
 270             fi
 271         fi
 272
 273         if [ "$NEED_IDMAPD" = yes ]
 274         then
 275             if ! pidof rpc.idmapd >/dev/null
 276             then
 277                 echo "rpc.statd running, but rpc.idmapd halted"
 278                 exit 3
 279             fi
 280         fi
 281
 282         echo "rpc.statd running"
 283         exit 0
 284         ;;
 285
 286   restart | force-reload)
 287         $0 stop
 288         sleep 1
 289         $0 start
 290         ;;
 291
 292   *)
 293         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 294         exit 1
 295         ;;
 296 esac
 297
 298 exit 0