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