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 NEED_STATD=
  21 NEED_IDMAPD=
  22 NEED_GSSD=
  23 PIPEFS_MOUNTPOINT=/var/lib/nfs/rpc_pipefs
  24 RPCGSSDOPTS=
  25 if [ -f $DEFAULTFILE ]; then
  26     . $DEFAULTFILE
  27 fi
  28
  29 . /lib/lsb/init-functions
  30
  31 # Exit if required binaries are missing.
  32 [ -x /sbin/rpc.statd ] || exit 0
  33
  34 #
  35 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  36 # /etc/defaults settings, if any, will override our autodetection.) This code
  37 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  38 #
  39 AUTO_NEED_IDMAPD=no
  40 AUTO_NEED_GSSD=no
  41
  42 if [ -f /etc/fstab ]; then
  43     exec 9<&0 </etc/fstab
  44
  45     while read DEV MTPT FSTYPE OPTS REST
  46     do
  47         case $DEV in
  48             ''|\#*)
  49                 continue
  50                 ;;
  51         esac
  52         # FSTYPE "nfs" can be NFSv4 now
  53         #if [ "$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 rpcbind is running
 141             if [ -x /usr/sbin/rpcinfo ]; then
 142                 /usr/sbin/rpcinfo -p >/dev/null 2>&1
 143                 RET=$?
 144                 if [ $RET != 0 ]; then
 145                    echo
 146                    log_warning_msg "Not starting: portmapper is not running"
 147                    exit 0
 148                 fi
 149             fi
 150             start-stop-daemon --start --oknodo --quiet \
 151                 --pidfile /var/run/rpc.statd.pid \
 152                 --exec /sbin/rpc.statd -- $STATDOPTS
 153             RET=$?
 154             if [ $RET != 0 ]; then
 155                 log_end_msg $RET
 156                 exit $RET
 157             else
 158                 if [ -d /run/sendsigs.omit.d ]; then
 159                     rm -f /run/sendsigs.omit.d/statd
 160                     ln -s /var/run/rpc.statd.pid /run/sendsigs.omit.d/statd
 161                 fi
 162             fi
 163         fi
 164
 165         # Don't start idmapd and gssd if we don't have them (say, if /usr is not
 166         # up yet).
 167         [ -x /usr/sbin/rpc.idmapd ] || NEED_IDMAPD=no
 168         [ -x /usr/sbin/rpc.gssd   ] || NEED_GSSD=no
 169
 170         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 171         then
 172             do_modprobe sunrpc
 173             do_modprobe nfs
 174             do_modprobe nfsd
 175             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 176             then
 177                 if [ "$NEED_IDMAPD" = yes ]
 178                 then
 179                     log_progress_msg "idmapd"
 180                     start-stop-daemon --start --oknodo --quiet \
 181                             --exec /usr/sbin/rpc.idmapd
 182                     RET=$?
 183                     if [ $RET != 0 ]; then
 184                         log_end_msg $RET
 185                         exit $RET
 186                     fi
 187                 fi
 188                 if [ "$NEED_GSSD" = yes ]
 189                 then
 190                     do_modprobe rpcsec_gss_krb5
 191                     log_progress_msg "gssd"
 192
 193                     # we need this available; better to fail now than
 194                     # mysteriously on the first mount
 195                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 196                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 197                         exit 1
 198                     fi
 199
 200                     start-stop-daemon --start --oknodo --quiet \
 201                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 202                     RET=$?
 203                     if [ $RET != 0 ]; then
 204                         log_end_msg $RET
 205                         exit $RET
 206                     fi
 207                 fi
 208             fi
 209         fi
 210         log_end_msg 0
 211         ;;
 212
 213   stop)
 214         log_daemon_msg "Stopping $DESC"
 215
 216         if [ "$NEED_GSSD" = yes ]
 217         then
 218             log_progress_msg "gssd"
 219             start-stop-daemon --stop --oknodo --quiet \
 220                     --name rpc.gssd
 221             RET=$?
 222             if [ $RET != 0 ]; then
 223                 log_end_msg $RET
 224                 exit $RET
 225             fi
 226         fi
 227         if [ "$NEED_IDMAPD" = yes ]
 228         then
 229             log_progress_msg "idmapd"
 230             start-stop-daemon --stop --oknodo --quiet \
 231                 --name rpc.idmapd
 232             RET=$?
 233             if [ $RET != 0 ]; then
 234                 log_end_msg $RET
 235                 exit $RET
 236             fi
 237         fi
 238         if [ "$NEED_STATD" = yes ]
 239         then
 240             log_progress_msg "statd"
 241             start-stop-daemon --stop --oknodo --quiet \
 242                 --name rpc.statd
 243             RET=$?
 244             if [ $RET != 0 ]; then
 245                 log_end_msg $RET
 246                 exit $RET
 247             fi
 248         fi
 249         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 250         log_end_msg 0
 251         ;;
 252
 253   status)
 254         if [ "$NEED_STATD" = yes ]
 255         then
 256             if ! pidof rpc.statd >/dev/null
 257             then
 258                 echo "rpc.statd not running"
 259                 exit 3
 260             fi
 261         fi
 262
 263         if [ "$NEED_GSSD" = yes ]
 264         then
 265             if ! pidof rpc.gssd >/dev/null
 266             then
 267                 echo "rpc.gssd not running"
 268                 exit 3
 269             fi
 270         fi
 271
 272         if [ "$NEED_IDMAPD" = yes ]
 273         then
 274             if ! pidof rpc.idmapd >/dev/null
 275             then
 276                 echo "rpc.idmapd not running"
 277                 exit 3
 278             fi
 279         fi
 280
 281         echo "all daemons running"
 282         exit 0
 283         ;;
 284
 285   restart | force-reload)
 286         $0 stop
 287         sleep 1
 288         $0 start
 289         ;;
 290
 291   *)
 292         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 293         exit 1
 294         ;;
 295 esac
 296
 297 exit 0