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             cat </dev/null >/dev/tcp/localhost/111
 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                 --pidfile /var/run/rpc.statd.pid \
 151                 --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 152             RET=$?
 153             if [ $RET != 0 ]; then
 154                 log_end_msg $RET
 155                 exit $RET
 156             else
 157                 mkdir -p /lib/init/rw/sendsigs.omit.d
 158                 rm -f /lib/init/rw/sendsigs.omit.d/statd
 159                 ln -s /var/run/rpc.statd.pid /lib/init/rw/sendsigs.omit.d/statd
 160             fi
 161         fi
 162
 163         # Don't start idmapd and gssd if we don't have them (say, if /usr is not
 164         # up yet).
 165         [ -x /usr/sbin/rpc.idmapd ] || NEED_IDMAPD=no
 166         [ -x /usr/sbin/rpc.gssd   ] || NEED_GSSD=no
 167
 168         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 169         then
 170             do_modprobe sunrpc
 171             do_modprobe nfs
 172             do_modprobe nfsd
 173             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 174             then
 175                 if [ "$NEED_IDMAPD" = yes ]
 176                 then
 177                     log_progress_msg "idmapd"
 178                     start-stop-daemon --start --oknodo --quiet \
 179                             --exec /usr/sbin/rpc.idmapd
 180                     RET=$?
 181                     if [ $RET != 0 ]; then
 182                         log_end_msg $RET
 183                         exit $RET
 184                     fi
 185                 fi
 186                 if [ "$NEED_GSSD" = yes ]
 187                 then
 188                     do_modprobe rpcsec_gss_krb5
 189                     log_progress_msg "gssd"
 190
 191                     # we need this available; better to fail now than
 192                     # mysteriously on the first mount
 193                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 194                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 195                         exit 1
 196                     fi
 197
 198                     start-stop-daemon --start --oknodo --quiet \
 199                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 200                     RET=$?
 201                     if [ $RET != 0 ]; then
 202                         log_end_msg $RET
 203                         exit $RET
 204                     fi
 205                 fi
 206             fi
 207         fi
 208         log_end_msg 0
 209         ;;
 210
 211   stop)
 212         log_daemon_msg "Stopping $DESC"
 213
 214         if [ "$NEED_GSSD" = yes ]
 215         then
 216             log_progress_msg "gssd"
 217             start-stop-daemon --stop --oknodo --quiet \
 218                     --name rpc.gssd
 219             RET=$?
 220             if [ $RET != 0 ]; then
 221                 log_end_msg $RET
 222                 exit $RET
 223             fi
 224         fi
 225         if [ "$NEED_IDMAPD" = yes ]
 226         then
 227             log_progress_msg "idmapd"
 228             start-stop-daemon --stop --oknodo --quiet \
 229                 --name rpc.idmapd
 230             RET=$?
 231             if [ $RET != 0 ]; then
 232                 log_end_msg $RET
 233                 exit $RET
 234             fi
 235         fi
 236         if [ "$NEED_STATD" = yes ]
 237         then
 238             log_progress_msg "statd"
 239             start-stop-daemon --stop --oknodo --quiet \
 240                 --name rpc.statd
 241             RET=$?
 242             if [ $RET != 0 ]; then
 243                 log_end_msg $RET
 244                 exit $RET
 245             fi
 246         fi
 247         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 248         log_end_msg 0
 249         ;;
 250
 251   status)
 252         if [ "$NEED_STATD" = yes ]
 253         then
 254             if ! pidof rpc.statd >/dev/null
 255             then
 256                 echo "rpc.statd not running"
 257                 exit 3
 258             fi
 259         fi
 260
 261         if [ "$NEED_GSSD" = yes ]
 262         then
 263             if ! pidof rpc.gssd >/dev/null
 264             then
 265                 echo "rpc.gssd not running"
 266                 exit 3
 267             fi
 268         fi
 269
 270         if [ "$NEED_IDMAPD" = yes ]
 271         then
 272             if ! pidof rpc.idmapd >/dev/null
 273             then
 274                 echo "rpc.idmapd not running"
 275                 exit 3
 276             fi
 277         fi
 278
 279         echo "all daemons running"
 280         exit 0
 281         ;;
 282
 283   restart | force-reload)
 284         $0 stop
 285         sleep 1
 286         $0 start
 287         ;;
 288
 289   *)
 290         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 291         exit 1
 292         ;;
 293 esac
 294
 295 exit 0