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