debian/nfs-common.init

   1 #!/bin/bash
   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 $DEV in
  49             ''|\#*)
  50                 continue
  51                 ;;
  52         esac
  53         # FSTYPE "nfs" can be NFSv4 now
  54         #if [ "$FSTYPE" = "nfs4" ]; then
  55             AUTO_NEED_IDMAPD=yes
  56         #fi
  57         case "$OPTS" in
  58
  59             sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  60             AUTO_NEED_GSSD=yes
  61             ;;
  62         esac
  63     done
  64
  65     exec 0<&9 9<&-
  66 fi
  67
  68 #
  69 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  70 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  71 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  72 # file. This does not mean that there are NFSv4 or other mounts active (or
  73 # even that nfs-kernel-server is installed), but it matches what the "start"
  74 # condition in nfs-kernel-server's init script does, which has a value in
  75 # itself.
  76 #
  77 if [ -f /etc/exports ] && grep -q '^[[:space:]]*[^#]*/' /etc/exports; then
  78     AUTO_NEED_IDMAPD=yes
  79 fi
  80
  81 case "$NEED_STATD" in
  82     yes|no)
  83         ;;
  84     *)
  85         NEED_STATD=yes
  86         ;;
  87 esac
  88
  89 case "$NEED_IDMAPD" in
  90     yes|no)
  91         ;;
  92     *)
  93         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  94         ;;
  95 esac
  96
  97 case "$NEED_GSSD" in
  98     yes|no)
  99         ;;
 100     *)
 101         NEED_GSSD=$AUTO_NEED_GSSD
 102         ;;
 103 esac
 104
 105 do_modprobe() {
 106     if [ -x /sbin/modprobe -a -f /proc/modules ]
 107     then
 108         modprobe -q "$1" || true
 109     fi
 110 }
 111
 112 do_mount() {
 113     if ! grep -E -qs "$1\$" /proc/filesystems
 114     then
 115         return 1
 116     fi
 117     if ! mountpoint -q "$2"
 118     then
 119         mount -t "$1" "$1" "$2"
 120         return
 121     fi
 122     return 0
 123 }
 124
 125 do_umount() {
 126     if mountpoint -q "$1"
 127     then
 128         umount "$1"
 129     fi
 130     return 0
 131 }
 132
 133 # See how we were called.
 134 case "$1" in
 135   start)
 136         log_daemon_msg "Starting $DESC"
 137
 138         if [ "$NEED_STATD" = yes ]; then
 139             log_progress_msg "statd"
 140
 141             # See if rpcbind is running
 142             if [ -x /usr/sbin/rpcinfo ]; then
 143                 /usr/sbin/rpcinfo -p >/dev/null 2>&1
 144                 RET=$?
 145                 if [ $RET != 0 ]; then
 146                    echo
 147                    log_warning_msg "Not starting: portmapper is not running"
 148                    exit 0
 149                 fi
 150             fi
 151             start-stop-daemon --start --oknodo --quiet \
 152                 --pidfile /var/run/rpc.statd.pid \
 153                 --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 154             RET=$?
 155             if [ $RET != 0 ]; then
 156                 log_end_msg $RET
 157                 exit $RET
 158             else
 159                 if [ -d /run/sendsigs.omit.d ]; then
 160                     rm -f /run/sendsigs.omit.d/statd
 161                     ln -s /var/run/rpc.statd.pid /run/sendsigs.omit.d/statd
 162                 fi
 163             fi
 164         fi
 165
 166         # Don't start idmapd and gssd if we don't have them (say, if /usr is not
 167         # up yet).
 168         [ -x /usr/sbin/rpc.idmapd ] || NEED_IDMAPD=no
 169         [ -x /usr/sbin/rpc.gssd   ] || NEED_GSSD=no
 170
 171         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 172         then
 173             do_modprobe sunrpc
 174             do_modprobe nfs
 175             do_modprobe nfsd
 176             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 177             then
 178                 if [ "$NEED_IDMAPD" = yes ]
 179                 then
 180                     log_progress_msg "idmapd"
 181                     start-stop-daemon --start --oknodo --quiet \
 182                             --exec /usr/sbin/rpc.idmapd
 183                     RET=$?
 184                     if [ $RET != 0 ]; then
 185                         log_end_msg $RET
 186                         exit $RET
 187                     fi
 188                 fi
 189                 if [ "$NEED_GSSD" = yes ]
 190                 then
 191                     do_modprobe rpcsec_gss_krb5
 192                     log_progress_msg "gssd"
 193
 194                     # we need this available; better to fail now than
 195                     # mysteriously on the first mount
 196                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 197                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 198                         exit 1
 199                     fi
 200
 201                     start-stop-daemon --start --oknodo --quiet \
 202                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 203                     RET=$?
 204                     if [ $RET != 0 ]; then
 205                         log_end_msg $RET
 206                         exit $RET
 207                     fi
 208                 fi
 209             fi
 210         fi
 211         log_end_msg 0
 212         ;;
 213
 214   stop)
 215         log_daemon_msg "Stopping $DESC"
 216
 217         if [ "$NEED_GSSD" = yes ]
 218         then
 219             log_progress_msg "gssd"
 220             start-stop-daemon --stop --oknodo --quiet \
 221                     --name rpc.gssd
 222             RET=$?
 223             if [ $RET != 0 ]; then
 224                 log_end_msg $RET
 225                 exit $RET
 226             fi
 227         fi
 228         if [ "$NEED_IDMAPD" = yes ]
 229         then
 230             log_progress_msg "idmapd"
 231             start-stop-daemon --stop --oknodo --quiet \
 232                 --name rpc.idmapd
 233             RET=$?
 234             if [ $RET != 0 ]; then
 235                 log_end_msg $RET
 236                 exit $RET
 237             fi
 238         fi
 239         if [ "$NEED_STATD" = yes ]
 240         then
 241             log_progress_msg "statd"
 242             start-stop-daemon --stop --oknodo --quiet \
 243                 --name rpc.statd
 244             RET=$?
 245             if [ $RET != 0 ]; then
 246                 log_end_msg $RET
 247                 exit $RET
 248             fi
 249         fi
 250         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 251         log_end_msg 0
 252         ;;
 253
 254   status)
 255         if [ "$NEED_STATD" = yes ]
 256         then
 257             if ! pidof rpc.statd >/dev/null
 258             then
 259                 echo "rpc.statd not running"
 260                 exit 3
 261             fi
 262         fi
 263
 264         if [ "$NEED_GSSD" = yes ]
 265         then
 266             if ! pidof rpc.gssd >/dev/null
 267             then
 268                 echo "rpc.gssd not running"
 269                 exit 3
 270             fi
 271         fi
 272
 273         if [ "$NEED_IDMAPD" = yes ]
 274         then
 275             if ! pidof rpc.idmapd >/dev/null
 276             then
 277                 echo "rpc.idmapd not running"
 278                 exit 3
 279             fi
 280         fi
 281
 282         echo "all daemons running"
 283         exit 0
 284         ;;
 285
 286   restart | force-reload)
 287         $0 stop
 288         sleep 1
 289         $0 start
 290         ;;
 291
 292   *)
 293         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 294         exit 1
 295         ;;
 296 esac
 297
 298 exit 0