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             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 152             then
 153                 if [ "$NEED_IDMAPD" = yes ]
 154                 then
 155                     log_progress_msg "idmapd"
 156                     start-stop-daemon --start --oknodo --quiet \
 157                             --exec /usr/sbin/rpc.idmapd
 158                     RET=$?
 159                     if [ $RET != 0 ]; then
 160                         log_end_msg $RET
 161                         exit $RET
 162                     fi
 163                 fi
 164                 if [ "$NEED_GSSD" = yes ]
 165                 then
 166                     do_modprobe rpcsec_gss_krb5
 167                     log_progress_msg "gssd"
 168
 169                     # we need this available; better to fail now than
 170                     # mysteriously on the first mount
 171                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 172                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 173                         exit 1
 174                     fi
 175
 176                     start-stop-daemon --start --oknodo --quiet \
 177                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 178                     RET=$?
 179                     if [ $RET != 0 ]; then
 180                         log_end_msg $RET
 181                         exit $RET
 182                     fi
 183                 fi
 184             fi
 185         fi
 186         log_end_msg 0
 187         ;;
 188
 189   stop)
 190         log_daemon_msg "Stopping $DESC"
 191
 192         if [ "$NEED_GSSD" = yes ]
 193         then
 194             log_progress_msg "gssd"
 195             start-stop-daemon --stop --oknodo --quiet \
 196                     --name rpc.gssd
 197             RET=$?
 198             if [ $RET != 0 ]; then
 199                 log_end_msg $RET
 200                 exit $RET
 201             fi
 202         fi
 203         if [ "$NEED_IDMAPD" = yes ]
 204         then
 205             log_progress_msg "idmapd"
 206             start-stop-daemon --stop --oknodo --quiet \
 207                 --name rpc.idmapd
 208             RET=$?
 209             if [ $RET != 0 ]; then
 210                 log_end_msg $RET
 211                 exit $RET
 212             fi
 213         fi
 214         if [ "$NEED_STATD" = yes ]
 215         then
 216             log_progress_msg "statd"
 217             start-stop-daemon --stop --oknodo --quiet \
 218                 --name rpc.statd
 219             RET=$?
 220             if [ $RET != 0 ]; then
 221                 log_end_msg $RET
 222                 exit $RET
 223             fi
 224         fi
 225         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 226         log_end_msg 0
 227         ;;
 228
 229   status)
 230         if [ "$NEED_STATD" = yes ]
 231         then
 232             if ! pidof rpc.statd >/dev/null
 233             then
 234                 echo "rpc.statd not running"
 235                 exit 3
 236             fi
 237         fi
 238
 239         if [ "$NEED_GSSD" = yes ]
 240         then
 241             if ! pidof rpc.gssd >/dev/null
 242             then
 243                 echo "rpc.gssd not running"
 244                 exit 3
 245             fi
 246         fi
 247
 248         if [ "$NEED_IDMAPD" = yes ]
 249         then
 250             if ! pidof rpc.idmapd >/dev/null
 251             then
 252                 echo "rpc.idmapd not running"
 253                 exit 3
 254             fi
 255         fi
 256
 257         echo "all daemons running"
 258         exit 0
 259         ;;
 260
 261   restart | force-reload)
 262         $0 stop
 263         sleep 1
 264         $0 start
 265         ;;
 266
 267   *)
 268         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 269         exit 1
 270         ;;
 271 esac
 272
 273 exit 0