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