debian/nfs-common.init

   1 #!/bin/bash
   2
   3 ### BEGIN INIT INFO
   4 # Provides:          nfs-common
   5 # Required-Start:    $portmap $time
   6 # Required-Stop:     $time
   7 # Default-Start:     2 3 4 5 S
   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_STATD=
  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 # Exit if required binaries are missing.
  33 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
  34
  35 #
  36 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  37 # /etc/defaults settings, if any, will override our autodetection.) This code
  38 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  39 #
  40 AUTO_NEED_IDMAPD=no
  41 AUTO_NEED_GSSD=no
  42
  43 if [ -f /etc/fstab ]; then
  44     exec 9<&0 </etc/fstab
  45
  46     while read DEV MTPT FSTYPE OPTS REST
  47     do
  48         case $DEV in
  49             ''|\#*)
  50                 continue
  51                 ;;
  52         esac
  53         # FSTYPE "nfs" can be NFSv4 now
  54         #if [ "$FSTYPE" = "nfs4" ]; then
  55             AUTO_NEED_IDMAPD=yes
  56         #fi
  57         case "$OPTS" in
  58
  59             sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  60             AUTO_NEED_GSSD=yes
  61             ;;
  62         esac
  63     done
  64
  65     exec 0<&9 9<&-
  66 fi
  67
  68 #
  69 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  70 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  71 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  72 # file. This does not mean that there are NFSv4 or other mounts active (or
  73 # even that nfs-kernel-server is installed), but it matches what the "start"
  74 # condition in nfs-kernel-server's init script does, which has a value in
  75 # itself.
  76 #
  77 if [ -f /etc/exports ] && grep -q '^[[:space:]]*[^#]*/' /etc/exports; then
  78     AUTO_NEED_IDMAPD=yes
  79 fi
  80
  81 case "$NEED_STATD" in
  82     yes|no)
  83         ;;
  84     *)
  85         NEED_STATD=yes
  86         ;;
  87 esac
  88
  89 case "$NEED_IDMAPD" in
  90     yes|no)
  91         ;;
  92     *)
  93         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  94         ;;
  95 esac
  96
  97 case "$NEED_GSSD" in
  98     yes|no)
  99         ;;
 100     *)
 101         NEED_GSSD=$AUTO_NEED_GSSD
 102         ;;
 103 esac
 104
 105 do_modprobe() {
 106     if [ -x /sbin/modprobe -a -f /proc/modules ]
 107     then
 108         modprobe -q "$1" || true
 109     fi
 110 }
 111
 112 do_mount() {
 113     if ! grep -E -qs "$1\$" /proc/filesystems
 114     then
 115         return 1
 116     fi
 117     if ! mountpoint -q "$2"
 118     then
 119         mount -t "$1" "$1" "$2"
 120         return
 121     fi
 122     return 0
 123 }
 124
 125 do_umount() {
 126     if mountpoint -q "$1"
 127     then
 128         umount "$1"
 129     fi
 130     return 0
 131 }
 132
 133 # See how we were called.
 134 case "$1" in
 135   start)
 136         log_daemon_msg "Starting $DESC"
 137
 138         if [ "$NEED_STATD" = yes ]; then
 139             log_progress_msg "statd"
 140
 141             # See if portmap or rpcbind are running
 142             (cat </dev/null >/dev/tcp/localhost/111) 2>/dev/null
 143             RET=$?
 144             if [ $RET != 0 ]; then
 145                 echo
 146                 log_warning_msg "Not starting: portmap daemon is not running"
 147                 exit 0
 148             fi
 149
 150             start-stop-daemon --start --oknodo --quiet \
 151                 --pidfile /var/run/rpc.statd.pid \
 152                 --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 153             RET=$?
 154             if [ $RET != 0 ]; then
 155                 log_end_msg $RET
 156                 exit $RET
 157             else
 158                 mkdir -p /lib/init/rw/sendsigs.omit.d
 159                 rm -f /lib/init/rw/sendsigs.omit.d/statd
 160                 ln -s /var/run/rpc.statd.pid /lib/init/rw/sendsigs.omit.d/statd
 161             fi
 162         fi
 163
 164         # Don't start idmapd and gssd if we don't have them (say, if /usr is not
 165         # up yet).
 166         [ -x /usr/sbin/rpc.idmapd ] || NEED_IDMAPD=no
 167         [ -x /usr/sbin/rpc.gssd   ] || NEED_GSSD=no
 168
 169         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 170         then
 171             do_modprobe sunrpc
 172             do_modprobe nfs
 173             do_modprobe nfsd
 174             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 175             then
 176                 if [ "$NEED_IDMAPD" = yes ]
 177                 then
 178                     log_progress_msg "idmapd"
 179                     start-stop-daemon --start --oknodo --quiet \
 180                             --exec /usr/sbin/rpc.idmapd
 181                     RET=$?
 182                     if [ $RET != 0 ]; then
 183                         log_end_msg $RET
 184                         exit $RET
 185                     fi
 186                 fi
 187                 if [ "$NEED_GSSD" = yes ]
 188                 then
 189                     do_modprobe rpcsec_gss_krb5
 190                     log_progress_msg "gssd"
 191
 192                     # we need this available; better to fail now than
 193                     # mysteriously on the first mount
 194                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 195                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 196                         exit 1
 197                     fi
 198
 199                     start-stop-daemon --start --oknodo --quiet \
 200                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 201                     RET=$?
 202                     if [ $RET != 0 ]; then
 203                         log_end_msg $RET
 204                         exit $RET
 205                     fi
 206                 fi
 207             fi
 208         fi
 209         log_end_msg 0
 210         ;;
 211
 212   stop)
 213         log_daemon_msg "Stopping $DESC"
 214
 215         if [ "$NEED_GSSD" = yes ]
 216         then
 217             log_progress_msg "gssd"
 218             start-stop-daemon --stop --oknodo --quiet \
 219                     --name rpc.gssd
 220             RET=$?
 221             if [ $RET != 0 ]; then
 222                 log_end_msg $RET
 223                 exit $RET
 224             fi
 225         fi
 226         if [ "$NEED_IDMAPD" = yes ]
 227         then
 228             log_progress_msg "idmapd"
 229             start-stop-daemon --stop --oknodo --quiet \
 230                 --name rpc.idmapd
 231             RET=$?
 232             if [ $RET != 0 ]; then
 233                 log_end_msg $RET
 234                 exit $RET
 235             fi
 236         fi
 237         if [ "$NEED_STATD" = yes ]
 238         then
 239             log_progress_msg "statd"
 240             start-stop-daemon --stop --oknodo --quiet \
 241                 --name rpc.statd
 242             RET=$?
 243             if [ $RET != 0 ]; then
 244                 log_end_msg $RET
 245                 exit $RET
 246             fi
 247         fi
 248         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 249         log_end_msg 0
 250         ;;
 251
 252   status)
 253         if [ "$NEED_STATD" = yes ]
 254         then
 255             if ! pidof rpc.statd >/dev/null
 256             then
 257                 echo "rpc.statd not running"
 258                 exit 3
 259             fi
 260         fi
 261
 262         if [ "$NEED_GSSD" = yes ]
 263         then
 264             if ! pidof rpc.gssd >/dev/null
 265             then
 266                 echo "rpc.gssd not running"
 267                 exit 3
 268             fi
 269         fi
 270
 271         if [ "$NEED_IDMAPD" = yes ]
 272         then
 273             if ! pidof rpc.idmapd >/dev/null
 274             then
 275                 echo "rpc.idmapd not running"
 276                 exit 3
 277             fi
 278         fi
 279
 280         echo "all daemons running"
 281         exit 0
 282         ;;
 283
 284   restart | force-reload)
 285         $0 stop
 286         sleep 1
 287         $0 start
 288         ;;
 289
 290   *)
 291         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 292         exit 1
 293         ;;
 294 esac
 295
 296 exit 0