debian/nfs-common.init

   1 #!/bin/sh
   2
   3 ### BEGIN INIT INFO
   4 # Provides:          nfs-common
   5 # Required-Start:    $time
   6 # Required-Stop:     $time
   7 # Default-Start:     2 3 4 5
   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_IDMAPD=
  22 NEED_GSSD=
  23 PIPEFS_MOUNTPOINT=/var/lib/nfs/rpc_pipefs
  24 RPCGSSDOPTS=
  25 if [ -f $DEFAULTFILE ]; then
  26     . $DEFAULTFILE
  27 fi
  28
  29 . /lib/lsb/init-functions
  30
  31 #
  32 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  33 # /etc/defaults settings, if any, will override our autodetection.) This code
  34 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  35 #
  36 AUTO_NEED_IDMAPD=no
  37 AUTO_NEED_GSSD=no
  38
  39 if [ -f /etc/fstab ]; then
  40     exec 9<&0 </etc/fstab
  41
  42     while read DEV MTPT FSTYPE OPTS REST
  43     do
  44         if [ "$FSTYPE" = "nfs4" ]; then
  45             AUTO_NEED_IDMAPD=yes
  46         fi
  47         case "$OPTS" in
  48             sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  49             AUTO_NEED_GSSD=yes
  50             ;;
  51         esac
  52     done
  53
  54     exec 0<&9 9<&-
  55 fi
  56
  57 #
  58 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  59 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  60 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  61 # file. This does not mean that there are NFSv4 or other mounts active (or
  62 # even that nfs-kernel-server is installed), but it matches what the "start"
  63 # condition in nfs-kernel-server's init script does, which has a value in
  64 # itself.
  65 #
  66 if [ -f /etc/exports ]; then
  67     AUTO_NEED_IDMAPD=yes
  68 fi
  69
  70
  71 case "$NEED_IDMAPD" in
  72     yes|no)
  73         ;;
  74     *)
  75         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  76         ;;
  77 esac
  78
  79 case "$NEED_GSSD" in
  80     yes|no)
  81         ;;
  82     *)
  83         NEED_GSSD=$AUTO_NEED_GSSD
  84         ;;
  85 esac
  86
  87 # Exit if required binaries are missing.
  88 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
  89 [ -x /usr/sbin/rpc.idmapd   ] || [ "$NEED_IDMAPD" = no ] || exit 0
  90 [ -x /usr/sbin/rpc.gssd     ] || [ "$NEED_GSSD"   = no ] || exit 0
  91
  92 do_modprobe() {
  93     if [ -x /sbin/modprobe -a -f /proc/modules ]
  94     then
  95         modprobe -q "$1" || true
  96     fi
  97 }
  98
  99 do_mount() {
 100     if ! grep -E -qs "$1\$" /proc/filesystems
 101     then
 102         return 1
 103     fi
 104     if ! mountpoint -q "$2"
 105     then
 106         mount -t "$1" "$1" "$2"
 107         return
 108     fi
 109     return 0
 110 }
 111
 112 do_umount() {
 113     if mountpoint -q "$1"
 114     then
 115         umount "$1"
 116     fi
 117     return 0
 118 }
 119
 120 # See how we were called.
 121 case "$1" in
 122   start)
 123         log_daemon_msg "Starting $DESC"
 124
 125         log_progress_msg "statd"
 126         start-stop-daemon --start --oknodo --quiet \
 127             --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 128         if [ $? != 0 ]; then
 129             log_end_msg $?
 130             exit $?
 131         fi
 132
 133         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 134         then
 135             do_modprobe nfs
 136             do_modprobe nfs4
 137             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 138             then
 139                 if [ "$NEED_IDMAPD" = yes ]
 140                 then
 141                     log_progress_msg "idmapd"
 142                     start-stop-daemon --start --oknodo --quiet \
 143                             --exec /usr/sbin/rpc.idmapd
 144                     if [ $? != 0 ]; then
 145                         log_end_msg $?
 146                         exit $?
 147                     fi
 148                 fi
 149                 if [ "$NEED_GSSD" = yes ]
 150                 then
 151                     do_modprobe rpcsec_gss_krb5
 152                     log_progress_msg "gssd"
 153
 154                     # we need this available; better to fail now than
 155                     # mysteriously on the first mount
 156                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 157                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 158                         exit 1
 159                     fi
 160
 161                     start-stop-daemon --start --oknodo --quiet \
 162                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 163                     if [ $? != 0 ]; then
 164                         log_end_msg $?
 165                         exit $?
 166                     fi
 167                 fi
 168             fi
 169         fi
 170         log_end_msg 0
 171         ;;
 172
 173   stop)
 174         log_daemon_msg "Stopping $DESC"
 175
 176         if [ "$NEED_GSSD" = yes ]
 177         then
 178             log_progress_msg "gssd"
 179             start-stop-daemon --stop --oknodo --quiet \
 180                     --name rpc.gssd
 181             if [ $? != 0 ]; then
 182                 log_end_msg $?
 183                 exit $?
 184             fi
 185         fi
 186         if [ "$NEED_IDMAPD" = yes ]
 187         then
 188             log_progress_msg "idmapd"
 189             start-stop-daemon --stop --oknodo --quiet \
 190                 --name rpc.idmapd
 191             if [ $? != 0 ]; then
 192                 log_end_msg $?
 193                 exit $?
 194             fi
 195         fi
 196         log_progress_msg "statd"
 197         start-stop-daemon --stop --oknodo --quiet \
 198             --name rpc.statd
 199         if [ $? != 0 ]; then
 200             log_end_msg $?
 201             exit $?
 202         fi
 203         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 204         log_end_msg 0
 205         ;;
 206
 207   status)
 208         if ! pidof rpc.statd >/dev/null
 209         then
 210             echo "rpc.statd not running"
 211             exit 3
 212         fi
 213
 214         if [ "$NEED_GSSD" = yes ]
 215         then
 216             if ! pidof rpc.gssd >/dev/null
 217             then
 218                 echo "rpc.statd running, but rpc.gssd halted"
 219                 exit 3
 220             fi
 221         fi
 222
 223         if [ "$NEED_IDMAPD" = yes ]
 224         then
 225             if ! pidof rpc.idmapd >/dev/null
 226             then
 227                 echo "rpc.statd running, but rpc.idmapd halted"
 228                 exit 3
 229             fi
 230         fi
 231
 232         echo "rpc.statd running"
 233         exit 0
 234         ;;
 235
 236   restart | force-reload)
 237         $0 stop
 238         sleep 1
 239         $0 start
 240         ;;
 241
 242   *)
 243         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 244         exit 1
 245         ;;
 246 esac
 247
 248 exit 0