debian/nfs-common.init

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